padOsd: Drop needless call

If we got this far, we are dealing with an already known label.
There's no need for this check.

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1290

js/ui/padOsd.js

@@ -639,9 +639,6 @@ var PadDiagram = GObject.registerClass({
 
         if (this._curEdited == null)
             return;
-        let [found] = this._getLabelCoords(action, idx, dir);
-        if (!found)
-            return;
         this._editorActor.show();
         editedLabel.hide();
     }