CC-2882: Airtime cannot delete watched folder when is been renamed

- done

airtime_mvc/application/controllers/ApiController.php

@@ -542,6 +542,7 @@ class ApiController extends Zend_Controller_Action
             foreach($files as $file){
                 $file->delete();
             }
+            return;
         }
         $this->view->id = $file->getId();
     }

airtime_mvc/application/models/MusicDir.php

@@ -284,10 +284,6 @@ class Application_Model_MusicDir {
         $real_path = realpath($p_dir)."/";
         if($real_path != "/"){
             $p_dir = $real_path;
-        }else{
-            // this is the case where user removes watched directory on 
-            // the file system directly.
-            $p_dir .= "/";
         }
         $dir = Application_Model_MusicDir::getDirByPath($p_dir);
         if($dir == NULL){