Remove 'initializeTestEnvironment' from 'analyzer'.

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

Index: pkg/analyzer/test/src/task/strong/test_all.dart
diff --git a/pkg/analyzer/test/src/task/strong/test_all.dart b/pkg/analyzer/test/src/task/strong/test_all.dart
index 86aae83f2f44f37c9e8de5bf68e68696df68b6de..7b65843ebd6071bc04f907d4b7bfa0f7d3e80864 100644
--- a/pkg/analyzer/test/src/task/strong/test_all.dart
+++ b/pkg/analyzer/test/src/task/strong/test_all.dart
@@ -6,13 +6,11 @@ library analyzer.test.src.task.strong.test_all;
 
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
-import '../../../utils.dart';
 import 'checker_test.dart' as checker_test;
 import 'inferred_type_test.dart' as inferred_type_test;
 
 /// Utility for manually running all tests.
 main() {
-  initializeTestEnvironment();
   defineReflectiveSuite(() {
     checker_test.main();
     inferred_type_test.main();