WIP fix: remove deprecated lints

https://github.com/dart-lang/linter/issues/3879

Author: mockturtl

CHANGELOG.md

@@ -1,3 +1,11 @@
+## HEAD
+
+**Prerelease**
+
+[[email protected]][]
+
+- remove deprecated lints [dart-lang/linter#3879][]
+
 ## [2.19.0-3][2.19.0]
 
 **Prerelease**
@@ -119,6 +127,7 @@
 [2.13.0]: https://github.com/dart-lang/sdk/blob/master/CHANGELOG.md#2130
 [2.12.0]: https://github.com/dart-lang/sdk/blob/master/CHANGELOG.md#2120---2021-03-03
 
+[[email protected]]: https://pub.dev/packages/linter/changelog#1310
 [[email protected]]: https://pub.dev/packages/linter/changelog#1300
 [[email protected]]: https://pub.dev/packages/linter/changelog#1280
 [[email protected]]: https://pub.dev/packages/linter/changelog#1260
@@ -174,3 +183,4 @@
 [dart-lang/linter#3592]: https://github.com/dart-lang/linter/pull/3592
 [dart-lang/linter#3803]: https://github.com/dart-lang/linter/pull/3803
 [dart-lang/linter#3791]: https://github.com/dart-lang/linter/pull/3791
+[dart-lang/linter#3879]: https://github.com/dart-lang/linter/issues/3879

lib/analysis_options.2.19.0.yaml

@@ -7,11 +7,10 @@ linter:
     - always_declare_return_types
     #    - always_put_control_body_on_new_line  # conflicts: curly_braces_in_flow_control_structures
     #    - always_put_required_named_parameters_first # conflicts: use_key_in_widget_constructors, sort_child_properties_last
-    - always_require_non_null_named_parameters
     #    - always_specify_types # conflicts: omit_local_variable_types
     #    - always_use_package_imports # conflicts: prefer_relative_imports
     - annotate_overrides
-    - avoid_annotating_with_dynamic
+    - avoid_annotating_with_dynamic # DEPRECATED? in 3.0 https://github.com/dart-lang/linter/issues/3879
     - avoid_bool_literals_in_conditional_expressions
     - avoid_catches_without_on_clauses
     - avoid_catching_errors
@@ -36,8 +35,6 @@ linter:
     - avoid_relative_lib_imports
     - avoid_renaming_method_parameters
     - avoid_return_types_on_setters
-    - avoid_returning_null
-    - avoid_returning_null_for_future
     - avoid_returning_null_for_void
     - avoid_returning_this
     - avoid_setters_without_getters
@@ -83,15 +80,15 @@ linter:
     - hash_and_equals
     - implementation_imports
     - implicit_call_tearoffs
-    - iterable_contains_unrelated_type
+    - iterable_contains_unrelated_type # DEPRECATED? in 3.0 https://github.com/dart-lang/linter/issues/3879
     - join_return_with_assignment
     #    - leading_newlines_in_multiline_strings  # note: optional
     - library_annotations
     - library_names
     - library_prefixes
     - library_private_types_in_public_api
     #    - lines_longer_than_80_chars  # note: false positive with long doc comments
-    - list_remove_unrelated_type
+    - list_remove_unrelated_type # DEPRECATED? in 3.0 https://github.com/dart-lang/linter/issues/3879
     - literal_only_boolean_expressions
     - missing_whitespace_between_adjacent_strings
     - no_adjacent_strings_in_list
@@ -125,7 +122,6 @@ linter:
     - prefer_constructors_over_static_methods
     - prefer_contains
     #    - prefer_double_quotes # conflicts: prefer_single_quotes
-    - prefer_equal_for_default_values
     - prefer_expression_function_bodies
     - prefer_final_fields
     #    - prefer_final_in_for_each  # conflicts: unnecessary_final