Remove the old task model

pkg/analysis_server/lib/src/server/http_server.dart

Index: pkg/analysis_server/lib/src/server/http_server.dart
diff --git a/pkg/analysis_server/lib/src/server/http_server.dart b/pkg/analysis_server/lib/src/server/http_server.dart
index c047d1fac836065f87b13c3211cd7f05daa99f35..9afabdab375eef0cb8c88c5884394ae9499df672 100644
--- a/pkg/analysis_server/lib/src/server/http_server.dart
+++ b/pkg/analysis_server/lib/src/server/http_server.dart
@@ -2,16 +2,14 @@
 // 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 http.server;
+library analysis_server.src.server.http_server;
 
 import 'dart:async';
 import 'dart:io';
 
 import 'package:analysis_server/src/channel/web_socket_channel.dart';
-import 'package:analysis_server/src/get_handler.dart';
 import 'package:analysis_server/src/socket_server.dart';
-import 'package:analysis_server/src/status/get_handler.dart' as newHandler;
-import 'package:analyzer/src/generated/engine.dart';
+import 'package:analysis_server/src/status/get_handler.dart';
 
 /**
  * Instances of the class [HttpServer] implement a simple HTTP server. The
@@ -36,11 +34,6 @@ class HttpAnalysisServer {
   GetHandler getHandler;
 
   /**
-   * An object that can handle GET requests when the new task model is in use.
-   */
-  newHandler.GetHandler newGetHandler;
-
-  /**
    * Future that is completed with the HTTP server once it is running.
    */
   Future<HttpServer> _server;
@@ -89,17 +82,10 @@ class HttpAnalysisServer {
    * Handle a GET request received by the HTTP server.
    */
   void _handleGetRequest(HttpRequest request) {
-    if (AnalysisEngine.instance.useTaskModel) {
-      if (newGetHandler == null) {
-        newGetHandler = new newHandler.GetHandler(socketServer, _printBuffer);
-      }
-      newGetHandler.handleGetRequest(request);
-    } else {
-      if (getHandler == null) {
-        getHandler = new GetHandler(socketServer, _printBuffer);
-      }
-      getHandler.handleGetRequest(request);
+    if (getHandler == null) {
+      getHandler = new GetHandler(socketServer, _printBuffer);
     }
+    getHandler.handleGetRequest(request);
   }
 
   /**