Remove analyzer_use_new_elements lint.

Change-Id: I32370c4c1092f945d2fc079ad92dff3b176c17e0
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/426980
Reviewed-by: Brian Wilkerson <[email protected]>
Reviewed-by: Paul Berry <[email protected]>
Commit-Queue: Konstantin Shcheglov <[email protected]>

Author: scheglov

pkg/analysis_server/lib/src/services/correction/error_fix_status.yaml

@@ -1869,8 +1869,6 @@ LintCode.analyzer_public_api_exports_non_public_name:
   status: noFix
 LintCode.analyzer_public_api_impl_in_public_api:
   status: noFix
-LintCode.analyzer_use_new_elements:
-  status: noFix
 LintCode.annotate_overrides:
   status: hasFix
 LintCode.annotate_redeclares:

pkg/analyzer/lib/src/dart/analysis/driver.dart

@@ -1894,7 +1894,6 @@ class AnalysisDriver {
     signature.addUint32List(_saltForResolution);
     if (file.workspacePackage case PubPackage pubPackage) {
       signature.addString(pubPackage.pubspecContent ?? '');
-      signature.addString(pubPackage.analyzerUseNewElementsContent ?? '');
     }
     signature.addString(library.file.uriStr);
     signature.addString(library.libraryCycle.apiSignature);

pkg/analyzer/lib/src/workspace/pub.dart

@@ -416,9 +416,6 @@ class PubPackage extends WorkspacePackage {
 
   final String? pubspecContent;
 
-  // TODO(scheglov): remove when we are done migrating
-  final String? analyzerUseNewElementsContent;
-
   final Pubspec? pubspec;
 
   final File pubspecFile;
@@ -446,11 +443,6 @@ class PubPackage extends WorkspacePackage {
       pubspecFile,
       pubspec,
       packageName,
-      analyzerUseNewElementsContent: _fileContentOrNull(
-        pubspecFile.parent.getChildAssumingFile(
-          'analyzer_use_new_elements.txt',
-        ),
-      ),
     );
   }
 
@@ -460,9 +452,8 @@ class PubPackage extends WorkspacePackage {
     this.pubspecContent,
     this.pubspecFile,
     this.pubspec,
-    this._name, {
-    required this.analyzerUseNewElementsContent,
-  });
+    this._name,
+  );
 
   /// The version range for the SDK specified for this package , or `null` if
   /// it is ill-formatted or not set.

pkg/linter/lib/src/rules.dart

@@ -12,7 +12,6 @@ import 'rules/always_require_non_null_named_parameters.dart';
 import 'rules/always_specify_types.dart';
 import 'rules/always_use_package_imports.dart';
 import 'rules/analyzer_public_api.dart';
-import 'rules/analyzer_use_new_elements.dart';
 import 'rules/annotate_overrides.dart';
 import 'rules/annotate_redeclares.dart';
 import 'rules/avoid_annotating_with_dynamic.dart';
@@ -265,7 +264,6 @@ void registerLintRules() {
     ..registerLintRule(AlwaysSpecifyTypes())
     ..registerLintRule(AlwaysUsePackageImports())
     ..registerLintRule(AnalyzerPublicApi())
-    ..registerLintRule(AnalyzerUseNewElements())
     ..registerLintRule(AnnotateOverrides())
     ..registerLintRule(AnnotateRedeclares())
     ..registerLintRule(AvoidAnnotatingWithDynamic())