fix warnings.

Author: hpoul

analysis_options.yaml

@@ -28,7 +28,6 @@ linter:
     - 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 # not yet tested
@@ -82,12 +81,11 @@ linter:
     - hash_and_equals
     - implementation_imports
     # - invariant_booleans # too many false positives: https://github.com/dart-lang/linter/issues/811
-    - iterable_contains_unrelated_type
+    - collection_methods_unrelated_type
     # - join_return_with_assignment # not yet tested
     - library_names
     - library_prefixes
     # - lines_longer_than_80_chars # not yet tested
-    - list_remove_unrelated_type
     # - literal_only_boolean_expressions # too many false positives: https://github.com/dart-lang/sdk/issues/34181
     - no_adjacent_strings_in_list
     - no_duplicate_case_values