refactor: remove unused variables

Author: IgorMinar

src/ng/compile.js

@@ -873,7 +873,7 @@ function $CompileProvider($provide, $$sanitizeUriProvider) {
       // not be able to attach scope data to them, so we will wrap them in <span>
       forEach($compileNodes, function(node, index){
         if (node.nodeType == 3 /* text node */ && node.nodeValue.match(/\S+/) /* non-empty */ ) {
-          $compileNodes[index] = node = jqLite(node).wrap('<span></span>').parent()[0];
+          $compileNodes[index] = jqLite(node).wrap('<span></span>').parent()[0];
         }
       });
       var compositeLinkFn =

src/ng/rootScope.js

@@ -171,8 +171,7 @@ function $RootScopeProvider(){
        *
        */
       $new: function(isolate) {
-        var ChildScope,
-            child;
+        var child;
 
         if (isolate) {
           child = new Scope();