Remove 'initializeTestEnvironment' from 'analyzer'.

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

Index: pkg/analyzer/test/src/util/lru_map_test.dart
diff --git a/pkg/analyzer/test/src/util/lru_map_test.dart b/pkg/analyzer/test/src/util/lru_map_test.dart
index af78f6c7c682ebe9bda38d217f3748ded0860fe2..369906ad61a09e1e9117a611a917e85d2ffaf9fe 100644
--- a/pkg/analyzer/test/src/util/lru_map_test.dart
+++ b/pkg/analyzer/test/src/util/lru_map_test.dart
@@ -8,10 +8,7 @@ import 'package:analyzer/src/util/lru_map.dart';
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
-import '../../utils.dart';
-
 main() {
-  initializeTestEnvironment();
   defineReflectiveSuite(() {
     defineReflectiveTests(_LRUCacheTest);
   });