Remove 'initializeTestEnvironment' from 'analysis_server'.

pkg/analysis_server/test/services/test_all.dart

Index: pkg/analysis_server/test/services/test_all.dart
diff --git a/pkg/analysis_server/test/services/test_all.dart b/pkg/analysis_server/test/services/test_all.dart
index 8b040a2aa0f7d527d270a4efaa5076ff6cc57733..5ee80ace6e24d2c6a3b753d2f4ab49a87ca2e736 100644
--- a/pkg/analysis_server/test/services/test_all.dart
+++ b/pkg/analysis_server/test/services/test_all.dart
@@ -6,7 +6,6 @@ library test.services;
 
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
-import '../utils.dart';
 import 'completion/test_all.dart' as completion_all;
 import 'correction/test_all.dart' as correction_all;
 import 'dependencies/test_all.dart' as dependencies_all;
@@ -17,7 +16,6 @@ import 'search/test_all.dart' as search_all;
 
 /// Utility for manually running all tests.
 main() {
-  initializeTestEnvironment();
   defineReflectiveSuite(() {
     completion_all.main();
     correction_all.main();