Remove 'initializeTestEnvironment' from 'analyzer'.

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

Index: pkg/analyzer/test/src/util/test_all.dart
diff --git a/pkg/analyzer/test/src/util/test_all.dart b/pkg/analyzer/test/src/util/test_all.dart
index 5d0ce6dd3d28ef55f9352529a52f08240e72260c..c41d8c8d7ef378b8cc2184a84b7d1a00830fe5f0 100644
--- a/pkg/analyzer/test/src/util/test_all.dart
+++ b/pkg/analyzer/test/src/util/test_all.dart
@@ -6,7 +6,6 @@ library analyzer.test.src.util.test_all;
 
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
-import '../../utils.dart';
 import 'absolute_path_test.dart' as absolute_path_test;
 import 'asserts_test.dart' as asserts_test;
 import 'fast_uri_test.dart' as fast_uri_test;
@@ -16,7 +15,6 @@ import 'yaml_test.dart' as yaml_test;
 
 /// Utility for manually running all tests.
 main() {
-  initializeTestEnvironment();
   defineReflectiveSuite(() {
     absolute_path_test.main();
     asserts_test.main();