Remove an analysis server import.

pkg/analyzer/lib/source/pub_package_map_provider.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 analyzer.source.pub_package_map_provider;
 
 import 'dart:collection';
 import 'dart:convert';
 import 'dart:core';
 import 'dart:io' as io;
 
-import 'package:analysis_server/src/analysis_server.dart';
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/source/package_map_provider.dart';
 import 'package:analyzer/src/dart/sdk/sdk.dart';
 import 'package:analyzer/src/generated/engine.dart';
 
 /**
  * The function used to run pub list.
  */
 typedef io.ProcessResult RunPubList(Folder folder);
 
@@ skipping 42 matching lines @@
       String lockPath = getPubspecLockPath(folder);
       if (!resourceProvider.getFile(lockPath).exists) {
         return computePackageMapError(folder);
       }
     }
     // TODO(paulberry) make this asynchronous so that we can (a) do other
     // analysis while it's in progress, and (b) time out if it takes too long
     // to respond.
     io.ProcessResult result;
     try {
-      result = ServerPerformanceStatistics.pub.makeCurrentWhile(() {
-        return _runPubList(folder);
-      });
+      result = _runPubList(folder);
     } on io.ProcessException catch (exception, stackTrace) {
       AnalysisEngine.instance.logger.logInformation(
           "Error running pub $PUB_LIST_COMMAND\n$exception\n$stackTrace");
     }
     if (result == null || result.exitCode != 0) {
       String exitCode =
           result != null ? 'exit code ${result.exitCode}' : 'null';
       AnalysisEngine.instance.logger
           .logInformation("pub $PUB_LIST_COMMAND failed: $exitCode");
       return computePackageMapError(folder);
@@ skipping 90 matching lines @@
     String workingDirectory = folder.path;
     int subprocessId = AnalysisEngine.instance.instrumentationService
         .logSubprocessStart(executablePath, arguments, workingDirectory);
     io.ProcessResult result = io.Process
         .runSync(executablePath, arguments, workingDirectory: workingDirectory);
     AnalysisEngine.instance.instrumentationService.logSubprocessResult(
         subprocessId, result.exitCode, result.stdout, result.stderr);
     return result;
   }
 }