fix(samples): removed region tags (#531)

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Fixes #<issue_number_goes_here> ☕️

If you write sample code, please follow the [samples format](
https://github.com/GoogleCloudPlatform/java-docs-samples/blob/main/SAMPLE_FORMAT.md).

Author: dfirova

retail/interactive-tutorials/src/main/java/events/ImportUserEventsBigQuery.java

@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-// [START retail_import_user_events_from_big_query]
-
 /*
  * Import user events into a catalog from GCS using Retail API
  */
@@ -112,5 +110,3 @@ public static void importUserEventsFromBigQuery(
     }
   }
 }
-
-// [END retail_import_user_events_from_big_query]

retail/interactive-tutorials/src/main/java/events/ImportUserEventsGcs.java

@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-// [START retail_import_user_events_from_gcs]
-
 /*
  * Import user events into a catalog from GCS using Retail API
  */
@@ -122,5 +120,3 @@ public static void importUserEventsFromGcs(String gcsEventsObject, String defaul
     }
   }
 }
-
-// [END retail_import_user_events_from_gcs]

retail/interactive-tutorials/src/main/java/events/ImportUserEventsInline.java

@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-// [START retail_import_user_events_from_inline_source]
-
 /*
  * Import user events into a catalog from inline source using Retail API
  */
@@ -125,5 +123,3 @@ public static void importUserEventsFromInlineSource(String defaultCatalog)
     }
   }
 }
-
-// [END retail_import_user_events_from_inline_source]

retail/interactive-tutorials/src/main/java/events/PurgeUserEvent.java

@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-// [START retail_purge_user_event]
-
 /*
  * Purge user events into a catalog from inline source using Retail API
  */
@@ -72,5 +70,3 @@ public static void callPurgeUserEvents(String defaultCatalog, String visitorId)
     }
   }
 }
-
-// [END retail_purge_user_event]

retail/interactive-tutorials/src/main/java/events/RejoinUserEvent.java

@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-// [START retail_rejoin_user_event]
-
 /*
  * Rejoin user events into a catalog from inline source using Retail API
  */
@@ -74,5 +72,3 @@ public static void callRejoinUserEvents(String defaultCatalog, String visitorId)
     purgeUserEvent(visitorId);
   }
 }
-
-// [END retail_rejoin_user_event]

retail/interactive-tutorials/src/main/java/events/WriteUserEvent.java

@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-// [START retail_write_user_event]
-
 /*
  * Write user events into a catalog from inline source using Retail API
  */
@@ -79,5 +77,3 @@ public static void writeUserEvent(String defaultCatalog, String visitorId)
     purgeUserEvent(visitorId);
   }
 }
-
-// [END retail_write_user_event]

retail/interactive-tutorials/src/main/java/product/AddFulfillmentPlaces.java

@@ -14,10 +14,6 @@
  * limitations under the License.
  */
 
-/*
- * [START retail_add_fulfillment_places]
- */
-
 package product;
 
 import static setup.SetupCleanup.createProduct;
@@ -82,5 +78,3 @@ public static void addFulfillmentPlaces(String productName, String placeId)
     }
   }
 }
-
-// [END retail_add_fulfillment_places]

retail/interactive-tutorials/src/main/java/product/CreateProduct.java

@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-// [START retail_create_product]
-
 /*
  * Create product in a catalog using Retail API
  */
@@ -88,5 +86,3 @@ public static Product createProduct(String productId, String branchName) throws
     }
   }
 }
-
-// [END retail_create_product]

retail/interactive-tutorials/src/main/java/product/CrudProduct.java

@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-// [START retail_crud_product]
-
 /*
  * Create product in a catalog using Retail API
  */
@@ -175,5 +173,3 @@ public static void deleteProduct(String productName) throws IOException {
     }
   }
 }
-
-// [END retail_crud_product]

retail/interactive-tutorials/src/main/java/product/DeleteProduct.java

@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-// [START retail_delete_product]
-
 /*
  * Delete product from a catalog using Retail API
  */
@@ -54,5 +52,3 @@ public static void deleteProduct(String productName) throws IOException {
     }
   }
 }
-
-// [END retail_delete_product]

retail/interactive-tutorials/src/main/java/product/GetProduct.java

@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-// [START retail_get_product]
-
 /*
  * Get product from a catalog using Retail API
  */
@@ -63,5 +61,3 @@ public static Product getProduct(String productName) throws IOException {
     }
   }
 }
-
-// [END retail_get_product]

retail/interactive-tutorials/src/main/java/product/ImportProductsBigQueryTable.java

@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-// [START retail_import_products_from_big_query]
-
 /*
  * Import products into a catalog from big query table using Retail API
  */
@@ -116,5 +114,3 @@ public static void waitForOperationCompletion(ImportProductsRequest importReques
     }
   }
 }
-
-// [END retail_import_products_from_big_query]

retail/interactive-tutorials/src/main/java/product/ImportProductsGcs.java

@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-// [START retail_import_products_from_gcs]
-
 /*
  * Import products into a catalog from gcs using Retail API
  */
@@ -119,5 +117,3 @@ public static void waitForOperationCompletion(ImportProductsRequest importReques
     }
   }
 }
-
-// [END retail_import_products_from_gcs]

retail/interactive-tutorials/src/main/java/product/ImportProductsInlineSource.java

@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-// [START retail_import_products_from_inline_source]
-
 /*
  * Import products into a catalog from inline source using Retail API
  */
@@ -207,5 +205,3 @@ public static void waitForOperationCompletion(ImportProductsRequest importReques
     }
   }
 }
-
-// [END retail_import_products_from_inline_source]

retail/interactive-tutorials/src/main/java/product/RemoveFulfillmentPlaces.java

@@ -14,10 +14,6 @@
  * limitations under the License.
  */
 
-/*
- * [START retail_remove_fulfillment_places]
- */
-
 package product;
 
 import static setup.SetupCleanup.createProduct;
@@ -82,5 +78,3 @@ public static void removeFulfillmentPlaces(String productName, String storeId)
     }
   }
 }
-
-// [END retail_remove_fulfillment_places]

retail/interactive-tutorials/src/main/java/product/SetInventory.java

@@ -14,10 +14,6 @@
  * limitations under the License.
  */
 
-/*
- * [START retail_set_inventory]
- */
-
 package product;
 
 import static setup.SetupCleanup.createProduct;
@@ -121,5 +117,3 @@ public static void setInventory(String productName) throws IOException, Interrup
     TimeUnit.SECONDS.sleep(30);
   }
 }
-
-// [END retail_set_inventory]

retail/interactive-tutorials/src/main/java/product/UpdateProduct.java

@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-// [START retail_update_product]
-
 /*
  * Update product in a catalog using Retail API
  */
@@ -93,5 +91,3 @@ public static void updateProduct(Product originalProduct, String defaultBranchNa
     }
   }
 }
-
-// [END retail_update_product]

retail/interactive-tutorials/src/main/java/search/SearchSimpleQuery.java

@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-// [START retail_search_for_products_with_query_parameter]
-
 /*
  * Call Retail API to search for a products in a catalog
  * using only search query.
@@ -66,5 +64,3 @@ public static void searchResponse(String defaultSearchPlacementName) throws IOEx
     }
   }
 }
-
-// [END retail_search_for_products_with_query_parameter]

retail/interactive-tutorials/src/main/java/search/SearchWithBoostSpec.java

@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-// [START retail_search_product_with_boost_spec]
-
 /*
  * Call Retail API to search for a products in a catalog, rerank the
  * results boosting or burying the products that match defined condition.
@@ -77,5 +75,3 @@ public static void searchResponse(String defaultSearchPlacementName) throws IOEx
     }
   }
 }
-
-// [END retail_search_product_with_boost_spec]

retail/interactive-tutorials/src/main/java/search/SearchWithFacetSpec.java

@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-// [START retail_search_product_with_facet_spec]
-
 package search;
 
 import com.google.cloud.ServiceOptions;
@@ -68,5 +66,3 @@ public static void searchResponse(String defaultSearchPlacementName) throws IOEx
     }
   }
 }
-
-// [END retail_search_product_with_facet_spec]

retail/interactive-tutorials/src/main/java/search/SearchWithFiltering.java

@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-// [START retail_search_for_products_with_filter]
-
 /*
  * Call Retail API to search for a products in a catalog,
  * filter the results by different product fields.
@@ -69,5 +67,3 @@ public static void searchResponse(String defaultSearchPlacementName) throws IOEx
     }
   }
 }
-
-// [END retail_search_for_products_with_filter]

retail/interactive-tutorials/src/main/java/search/SearchWithOrdering.java

@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-// [START retail_search_for_products_with_ordering]
-
 /*
  * Call Retail API to search for a products in a catalog,
  * order the results by different product fields.
@@ -68,5 +66,3 @@ public static void searchResponse(String defaultSearchPlacementName) throws IOEx
     }
   }
 }
-
-// [END retail_search_for_products_with_ordering]

retail/interactive-tutorials/src/main/java/search/SearchWithPagination.java

@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-// [START retail_search_for_products_with_page_size]
-
 /*
  * Call Retail API to search for a products in a catalog,
  * limit the number of the products per page and go to the next page
@@ -75,5 +73,3 @@ public static void searchResponse(String defaultSearchPlacementName) throws IOEx
     }
   }
 }
-
-// [END retail_search_for_products_with_page_size]

retail/interactive-tutorials/src/main/java/search/SearchWithQueryExpansionSpec.java

@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-// [START retail_search_for_products_with_query_expansion_specification]
-
 /*
  * Call Retail API to search for a products in a catalog,
  * enabling the query expansion feature to let the Google Retail Search
@@ -74,5 +72,3 @@ public static void searchResponse(String defaultSearchPlacementName) throws IOEx
     }
   }
 }
-
-// [END retail_search_for_products_with_query_expansion_specification]