fix to .draggable from #1105

* reverted some code that I didn't understand from #695
which was causing issues in my app.
the `dragOut` makes sense to me, the other part not.

Author: Alain Dumesny

src/gridstack.jQueryUI.js

@@ -63,15 +63,6 @@
         stop: opts.stop || function() {},
         drag: opts.drag || function() {}
       }));
-
-      var handles = el.data('gs-resize-handles') ? el.data('gs-resize-handles') : this.grid.opts.resizable.handles;
-      el.resizable($.extend({}, this.grid.opts.resizable, {
-        handles: handles
-      }, {
-        start: opts.start || function () { },
-        stop: opts.stop || function () { },
-        resize: opts.resize || function () { }
-      }));
     }
     return this;
   };