[dynamic_layouts] Remove the dynamic_layouts package (flutter#6830)

Fixes flutter#148979

Also related: flutter#149252

Author: Piinks

.github/dependabot.yml

@@ -107,17 +107,6 @@ updates:
       - dependency-name: "*"
         update-types: ["version-update:semver-minor", "version-update:semver-patch"]
 
-  - package-ecosystem: "gradle"
-    directory: "/packages/dynamic_layouts/example/android/app"
-    commit-message:
-      prefix: "[dynamic_lyts]"
-    schedule:
-      interval: "weekly"
-    open-pull-requests-limit: 10
-    ignore:
-      - dependency-name: "*"
-        update-types: ["version-update:semver-minor", "version-update:semver-patch"]
-
   - package-ecosystem: "gradle"
     directory: "/packages/espresso/android"
     commit-message:

.github/labeler.yml

@@ -23,11 +23,6 @@
     - any-glob-to-any-file:
       - third_party/packages/cupertino_icons/**/*
 
-'p: dynamic_layouts':
-  - changed-files:
-    - any-glob-to-any-file:
-      - packages/dynamic_layouts/**/*
-
 'p: espresso':
   - changed-files:
     - any-glob-to-any-file:

CODEOWNERS

@@ -8,7 +8,6 @@ packages/animations/**                                   @goderbauer
 packages/camera/**                                       @bparrishMines
 packages/cross_file/**                                   @ditman
 packages/css_colors/**                                   @stuartmorgan
-packages/dynamic_layouts/**                              @Piinks
 packages/extension_google_sign_in_as_googleapis_auth/**  @ditman
 packages/file_selector/**                                @stuartmorgan
 packages/flutter_adaptive_scaffold/**                    @gspencergoog