Remove 'initializeTestEnvironment' from 'analyzer'.

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

Index: pkg/analyzer/test/src/util/asserts_test.dart
diff --git a/pkg/analyzer/test/src/util/asserts_test.dart b/pkg/analyzer/test/src/util/asserts_test.dart
index c67dff61d1b5826bfa4eb3d4b27385d300e9f419..fdea26a75c570c55f46c1ea01ff5ed3dc3afdae2 100644
--- a/pkg/analyzer/test/src/util/asserts_test.dart
+++ b/pkg/analyzer/test/src/util/asserts_test.dart
@@ -8,10 +8,7 @@ import 'package:analyzer/src/util/asserts.dart';
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
-import '../../utils.dart';
-
 main() {
-  initializeTestEnvironment();
   defineReflectiveSuite(() {
     defineReflectiveTests(AnalysisTaskTest);
   });