Remove 'initializeTestEnvironment' from 'analysis_server'.

pkg/analysis_server/test/completion_test.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library test.completion.support;
 
 import 'dart:async';
 import 'dart:collection';
 
 import 'package:test/test.dart';
 
 import 'completion_test_support.dart';
-import 'utils.dart';
 
 main() {
-  initializeTestEnvironment();
   CompletionTestBuilder builder = new CompletionTestBuilder();
   builder.buildAll();
 }
 
 /**
  * A builder that builds the completion tests.
  */
 class CompletionTestBuilder {
   /**
    * Number of tests that have been built that are expected to pass.
@@ skipping 2951 matching lines @@
       } else {
         ++expectedPassCount;
         test(testName, () {
           CompletionTestCase test = new CompletionTestCase();
           return test.runTest(spec, extraFiles);
         });
       }
     }
   }
 }