remove more unused code from apf

plugins/c9.ide.layout.classic/layout.js

@@ -103,9 +103,6 @@ define(function(require, exports, module) {
             colRight.parentNode.$handle.setAttribute("id", "splitterPanelRight");
             plugin.addElement(hboxMain.$handle);
             plugin.addElement(colRight.parentNode.$handle);
-
-            // Intentionally global
-            window.sbShared = plugin.getElement("sbShared");
             
             // update c9 main logo link
             logobar = plugin.getElement("logobar");

plugins/c9.ide.layout.classic/layout.xml

@@ -9,21 +9,7 @@
       storage                   = "cookie"
       baseurl                   = "{apf.host ? apf.host : ''}"
       requested-with-getparam   = "xhr"/>
-
-    <!-- default model -->
-    <a:model />
     
-    <a:scrollbar
-        id       = "sbShared"
-        skin     = "sbios"
-        top      = "0"
-        right    = "0"
-        bottom   = "0"
-        width    = "7"
-        showonscroll = "true"
-        zindex   = "100000"
-    />
-
     <a:vsplitbox id="root" anchors="0 0 0 0">
         <a:bar id="barQuestion" height="0" visible="false">
         </a:bar>