remove more unused code from apf

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

@@ -104,9 +104,6 @@ define(function(require, exports, module) {
             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");
             if (c9.hosted) {

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

@@ -10,20 +10,6 @@
       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>