Remove 'initializeTestEnvironment' from 'analyzer'.

pkg/analyzer/test/src/task/test_all.dart

Index: pkg/analyzer/test/src/task/test_all.dart
diff --git a/pkg/analyzer/test/src/task/test_all.dart b/pkg/analyzer/test/src/task/test_all.dart
index 1c18fdc8a80e5c45c076e531eaf0d3455f67e655..f34c36c1c3529d21b82c063f2ca7fde089ef8ca8 100644
--- a/pkg/analyzer/test/src/task/test_all.dart
+++ b/pkg/analyzer/test/src/task/test_all.dart
@@ -6,7 +6,6 @@ library analyzer.test.src.task.test_all;
 
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
-import '../../utils.dart';
 import 'dart_test.dart' as dart_test;
 import 'dart_work_manager_test.dart' as dart_work_manager_test;
 import 'driver_test.dart' as driver_test;
@@ -26,7 +25,6 @@ import 'yaml_test.dart' as yaml_test;
 
 /// Utility for manually running all tests.
 main() {
-  initializeTestEnvironment();
   defineReflectiveSuite(() {
     dart_test.main();
     dart_work_manager_test.main();