remove support for analyzer configuration in pubspec

pkg/analyzer/test/source/test_all.dart

Index: pkg/analyzer/test/source/test_all.dart
diff --git a/pkg/analyzer/test/source/test_all.dart b/pkg/analyzer/test/source/test_all.dart
index 98f3cde7003878b76bf70990064f433dd87a45c7..a995c9bd470d3b3a70d3efd6183dec83dded87a7 100644
--- a/pkg/analyzer/test/source/test_all.dart
+++ b/pkg/analyzer/test/source/test_all.dart
@@ -7,7 +7,6 @@ library analyzer.test.source.test_all;
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
 import 'analysis_options_provider_test.dart' as analysis_options_provider_test;
-import 'config_test.dart' as config_test;
 import 'embedder_test.dart' as embedder_test;
 import 'error_processor_test.dart' as error_processor_test;
 import 'package_map_provider_test.dart' as package_map_provider_test;
@@ -19,7 +18,6 @@ import 'sdk_ext_test.dart' as sdk_ext_test;
 main() {
   defineReflectiveSuite(() {
     analysis_options_provider_test.main();
-    config_test.main();
     embedder_test.main();
     error_processor_test.main();
     package_map_provider_test.main();