Remove an analysis server import.

pkg/analyzer/lib/source/pub_package_map_provider.dart

Index: pkg/analyzer/lib/source/pub_package_map_provider.dart
diff --git a/pkg/analyzer/lib/source/pub_package_map_provider.dart b/pkg/analyzer/lib/source/pub_package_map_provider.dart
index 2196d1c8720b9a9e9129daee4558128abf569ae2..3b2d7311f5c4ac66bcf54d7391585b8c7cf95977 100644
--- a/pkg/analyzer/lib/source/pub_package_map_provider.dart
+++ b/pkg/analyzer/lib/source/pub_package_map_provider.dart
@@ -9,7 +9,6 @@ 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';
@@ -72,9 +71,7 @@ class PubPackageMapProvider implements PackageMapProvider {
     // 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");