Roll back the AAR build experiment (#36966)

* Roll back the AAR build experiment

This has been breaking flutter/plugins CI for the past day.

* Remove integration tests that rely on the AAR flag

dev/bots/test.dart

@@ -961,15 +961,9 @@ Future<void> _androidGradleTests(String subShard) async {
   if (subShard == 'gradle1') {
     await _runDevicelabTest('gradle_plugin_light_apk_test', env: env);
     await _runDevicelabTest('gradle_plugin_fat_apk_test', env: env);
-    await _runDevicelabTest('gradle_jetifier_test', env: env);
-    await _runDevicelabTest('gradle_plugins_without_annotations_test', env: env);
-    await _runDevicelabTest('gradle_plugin_dependencies_test', env: env);
-    await _runDevicelabTest('gradle_migrate_settings_test', env: env);
   }
   if (subShard == 'gradle2') {
     await _runDevicelabTest('gradle_plugin_bundle_test', env: env);
     await _runDevicelabTest('module_test', env: env);
-    await _runDevicelabTest('build_aar_plugin_test', env: env);
-    await _runDevicelabTest('build_aar_module_test', env: env);
   }
 }

packages/flutter_tools/lib/src/features.dart

@@ -124,10 +124,6 @@ const Feature flutterBuildPluginAsAarFeature = Feature(
   name: 'Build plugins independently as AARs in app projects',
   configSetting: 'enable-build-plugin-as-aar',
   master: FeatureChannelSetting(
-    available: true,
-    enabledByDefault: true,
-  ),
-  dev: FeatureChannelSetting(
     available: true,
     enabledByDefault: false,
   ),

packages/flutter_tools/test/general.shard/features_test.dart

@@ -436,16 +436,16 @@ void main() {
     /// Plugins as AARS
     test('plugins built as AARs with config on master', () => testbed.run(() {
       when(mockFlutterVerion.channel).thenReturn('master');
-      when<bool>(mockFlutterConfig.getValue('enable-build-plugin-as-aar')).thenReturn(true);
+      when<bool>(mockFlutterConfig.getValue('enable-build-plugin-as-aar')).thenReturn(false);
 
-      expect(featureFlags.isPluginAsAarEnabled, true);
+      expect(featureFlags.isPluginAsAarEnabled, false);
     }));
 
     test('plugins built as AARs with config on dev', () => testbed.run(() {
       when(mockFlutterVerion.channel).thenReturn('dev');
-      when<bool>(mockFlutterConfig.getValue('enable-build-plugin-as-aar')).thenReturn(true);
+      when<bool>(mockFlutterConfig.getValue('enable-build-plugin-as-aar')).thenReturn(false);
 
-      expect(featureFlags.isPluginAsAarEnabled, true);
+      expect(featureFlags.isPluginAsAarEnabled, false);
     }));
   });
 }