Remove shaped desktop support from remoting host and client.

remoting/webapp/base/js/client_plugin_impl.js

Index: remoting/webapp/base/js/client_plugin_impl.js
diff --git a/remoting/webapp/base/js/client_plugin_impl.js b/remoting/webapp/base/js/client_plugin_impl.js
index 626c5d9e218b4d0971cc70344615114cd6153b8f..da327d813838857faf7822dc3ab17e4de8300c1d 100644
--- a/remoting/webapp/base/js/client_plugin_impl.js
+++ b/remoting/webapp/base/js/client_plugin_impl.js
@@ -264,8 +264,6 @@ remoting.ClientPluginImpl.prototype.handleMessageMethod_ = function(message) {
     this.onInitializedDeferred_.resolve();
   } else if (message.method == 'onDesktopSize') {
     this.hostDesktop_.onSizeUpdated(message);
-  } else if (message.method == 'onDesktopShape') {
-    this.hostDesktop_.onShapeUpdated(message);
   } else if (message.method == 'onPerfStats') {
     // Return value is ignored. These calls will throw an error if the value
     // is not a number.