Elements. Remove test for analyzer_use_new_elements

It becomes a source of problems while removing V1 element model.
See https://dart-review.googlesource.com/c/sdk/+/422880

I decided to keep the implementation for now, just in case we use V1
accidentally. But we should not change it anymore, because we will not
have tests after this CL.

Change-Id: Iabdab21e12b4142c2df37876df5d7128988c5ded
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/423160
Reviewed-by: Brian Wilkerson <[email protected]>
Commit-Queue: Konstantin Shcheglov <[email protected]>

Author: scheglov

pkg/linter/test/rules/all.dart

@@ -12,7 +12,6 @@ import 'always_put_required_named_parameters_first_test.dart'
 import 'always_specify_types_test.dart' as always_specify_types;
 import 'always_use_package_imports_test.dart' as always_use_package_imports;
 import 'analyzer_public_api_test.dart' as analyzer_public_api;
-import 'analyzer_use_new_elements_test.dart' as analyzer_use_new_elements;
 import 'annotate_overrides_test.dart' as annotate_overrides;
 import 'annotate_redeclares_test.dart' as annotate_redeclares;
 import 'avoid_annotating_with_dynamic_test.dart'
@@ -334,7 +333,6 @@ void main() {
   always_specify_types.main();
   always_use_package_imports.main();
   analyzer_public_api.main();
-  analyzer_use_new_elements.main();
   annotate_overrides.main();
   annotate_redeclares.main();
   avoid_annotating_with_dynamic.main();