remove an unused analysis options file (#19010)

analysis_options_repo.yaml

-# Specify analysis options.
-#
-# Until there are meta linter rules, each desired lint must be explicitly enabled.
-# See: https://github.com/dart-lang/linter/issues/288
-#
-# For a list of lints, see: http://dart-lang.github.io/linter/lints/
-# See the configuration guide for more
-# https://github.com/dart-lang/sdk/tree/master/pkg/analyzer#configuring-the-analyzer
-#
-# There are three similar analysis options files in the flutter repo:
-#   - analysis_options.yaml
-#   - analysis_options_repo.yaml (this file)
-#   - packages/flutter/lib/analysis_options_user.yaml
-#
-# This file contains the analysis options used by 'flutter analyze' when analyzing
-# the flutter repository. It is very similar to analysis_options.yaml;
-# the only difference (currently) is the public_member_api_docs option,
-# which is turned on and programmatically reduced to a single output line
-# indicating the # of violations for that rule.
-
-analyzer:
-  language:
-    enableStrictCallChecks: true
-    enableSuperMixins: true
-  strong-mode:
-    implicit-dynamic: false
-  errors:
-    # treat missing required parameters as a warning (not a hint)
-    missing_required_param: warning
-    # treat missing returns as a warning (not a hint)
-    missing_return: warning
-    # allow having TODOs in the code
-    todo: ignore
-  # `flutter analyze` (without `--watch`) just ignores directories
-  # that contain a .dartignore file, and this file does not have any
-  # effect on what files are actually analyzed.
-
-linter:
-  rules:
-    # these rules are documented on and in the same order as
-    # the Dart Lint rules page to make maintenance easier
-    # https://github.com/dart-lang/linter/blob/master/example/all.yaml
-    - always_declare_return_types
-    - always_put_control_body_on_new_line
-    # - always_put_required_named_parameters_first # we prefer having parameters in the same order as fields https://github.com/flutter/flutter/issues/10219
-    - always_require_non_null_named_parameters
-    - always_specify_types
-    - annotate_overrides
-    # - avoid_annotating_with_dynamic # conflicts with always_specify_types
-    - avoid_as
-    # - avoid_bool_literals_in_conditional_expressions # not yet tested
-    # - avoid_catches_without_on_clauses # we do this commonly
-    # - avoid_catching_errors # we do this commonly
-    - avoid_classes_with_only_static_members
-    # - avoid_double_and_int_checks # only useful when targeting JS runtime
-    - avoid_empty_else
-    # - avoid_field_initializers_in_const_classes # not yet tested
-    - avoid_function_literals_in_foreach_calls
-    - avoid_init_to_null
-    # - avoid_js_rounded_ints # only useful when targeting JS runtime
-    - avoid_null_checks_in_equality_operators
-    # - avoid_positional_boolean_parameters # not yet tested
-    # - avoid_private_typedef_functions # we prefer having typedef (discussion in https://github.com/flutter/flutter/pull/16356)
-    - avoid_relative_lib_imports
-    - avoid_renaming_method_parameters
-    - avoid_return_types_on_setters
-    # - avoid_returning_null # we do this commonly
-    # - avoid_returning_this # https://github.com/dart-lang/linter/issues/842
-    # - avoid_setters_without_getters # not yet tested
-    # - avoid_single_cascade_in_expression_statements # not yet tested
-    - avoid_slow_async_io
-    # - avoid_types_as_parameter_names # https://github.com/dart-lang/linter/pull/954/files
-    # - avoid_types_on_closure_parameters # conflicts with always_specify_types
-    # - avoid_unused_constructor_parameters # https://github.com/dart-lang/linter/pull/847
-    - await_only_futures
-    - camel_case_types
-    - cancel_subscriptions
-    # - cascade_invocations # not yet tested
-    # - close_sinks # https://github.com/flutter/flutter/issues/5789
-    # - comment_references # blocked on https://github.com/dart-lang/dartdoc/issues/1153
-    # - constant_identifier_names # https://github.com/dart-lang/linter/issues/204
-    - control_flow_in_finally
-    - directives_ordering
-    - empty_catches
-    - empty_constructor_bodies
-    - empty_statements
-    - hash_and_equals
-    - implementation_imports
-    # - invariant_booleans # https://github.com/flutter/flutter/issues/5790
-    - iterable_contains_unrelated_type
-    # - join_return_with_assignment # not yet tested
-    - library_names
-    - library_prefixes
-    - list_remove_unrelated_type
-    # - literal_only_boolean_expressions # https://github.com/flutter/flutter/issues/5791
-    - no_adjacent_strings_in_list
-    - no_duplicate_case_values
-    - non_constant_identifier_names
-    # - omit_local_variable_types # opposite of always_specify_types
-    # - one_member_abstracts # too many false positives
-    # - only_throw_errors # https://github.com/flutter/flutter/issues/5792
-    - overridden_fields
-    - package_api_docs
-    - package_names
-    - package_prefixed_library_names
-    # - parameter_assignments # we do this commonly
-    - prefer_adjacent_string_concatenation
-    - prefer_asserts_in_initializer_lists
-    - prefer_bool_in_asserts
-    - prefer_collection_literals
-    - prefer_conditional_assignment
-    - prefer_const_constructors
-    - prefer_const_constructors_in_immutables
-    - prefer_const_declarations
-    - prefer_const_literals_to_create_immutables
-    # - prefer_constructors_over_static_methods # not yet tested
-    - prefer_contains
-    - prefer_equal_for_default_values
-    # - prefer_expression_function_bodies # conflicts with https://github.com/flutter/flutter/wiki/Style-guide-for-Flutter-repo#consider-using--for-short-functions-and-methods
-    - prefer_final_fields
-    - prefer_final_locals
-    - prefer_foreach
-    # - prefer_function_declarations_over_variables # not yet tested
-    - prefer_initializing_formals
-    # - prefer_interpolation_to_compose_strings # not yet tested
-    # - prefer_iterable_whereType # https://github.com/dart-lang/sdk/issues/32463
-    - prefer_is_empty
-    - prefer_is_not_empty
-    - prefer_single_quotes
-    - prefer_typing_uninitialized_variables
-    - public_member_api_docs # this is the only difference from analysis_options.yaml
-    - recursive_getters
-    - slash_for_doc_comments
-    - sort_constructors_first
-    - sort_unnamed_constructors_first
-    - super_goes_last
-    - test_types_in_equals
-    - throw_in_finally
-    # - type_annotate_public_apis # subset of always_specify_types
-    - type_init_formals
-    # - unawaited_futures # https://github.com/flutter/flutter/issues/5793
-    - unnecessary_brace_in_string_interps
-    - unnecessary_getters_setters
-    # - unnecessary_lambdas # https://github.com/dart-lang/linter/issues/498
-    - unnecessary_null_aware_assignments
-    - unnecessary_null_in_if_null_operators
-    - unnecessary_overrides
-    - unnecessary_parenthesis
-    # - unnecessary_statements # not yet tested
-    - unnecessary_this
-    - unrelated_type_equality_checks
-    - use_rethrow_when_possible
-    # - use_setters_to_change_properties # not yet tested
-    # - use_string_buffers # https://github.com/dart-lang/linter/pull/664
-    # - use_to_and_as_if_applicable # has false positives, so we prefer to catch this by code-review
-    - valid_regexps
-    # - void_checks # not yet tested