Remove unused setter from ServerStarter and un-deprecate a used setter

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

Index: pkg/analysis_server/lib/src/server/driver.dart
diff --git a/pkg/analysis_server/lib/src/server/driver.dart b/pkg/analysis_server/lib/src/server/driver.dart
index 14a4770c4a55e7b5a51ab334b2c65bdf48bf8723..c5eb6bf65526fde5f7d1684735eae2d2cb610de3 100644
--- a/pkg/analysis_server/lib/src/server/driver.dart
+++ b/pkg/analysis_server/lib/src/server/driver.dart
@@ -9,7 +9,6 @@ import 'dart:io';
 import 'dart:math';
 
 import 'package:analysis_server/src/analysis_server.dart';
-import 'package:analysis_server/src/context_manager.dart';
 import 'package:analysis_server/src/plugin/server_plugin.dart';
 import 'package:analysis_server/src/server/http_server.dart';
 import 'package:analysis_server/src/server/stdio_server.dart';
@@ -299,16 +298,9 @@ class Driver implements ServerStarter {
   InstrumentationServer instrumentationServer;
 
   /**
-   * The context manager used to create analysis contexts within each of the
-   * analysis roots.
-   */
-  ContextManager contextManager;
-
-  /**
    * The package resolver provider used to override the way package URI's are
    * resolved in some contexts.
    */
-  @deprecated
   ResolverProvider packageResolverProvider;
 
   /**
@@ -420,7 +412,7 @@ class Driver implements ServerStarter {
     // Create the sockets and start listening for requests.
     //
     socketServer = new SocketServer(analysisServerOptions, defaultSdk, service,
-        serverPlugin, contextManager, packageResolverProvider);
+        serverPlugin, packageResolverProvider);
     httpServer = new HttpAnalysisServer(socketServer);
     stdioServer = new StdioAnalysisServer(socketServer);
     socketServer.userDefinedPlugins = _userDefinedPlugins;