cleanup: Remove empty leading/trailing lines in blocks

gjs added a new rule to its eslint ruleset that forbids "block padding",
so make sure we conform to that rule before syncing up the configuration.

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1498

js/ui/padOsd.js

@@ -673,7 +673,6 @@ var PadOsd = GObject.registerClass({
                 // the same group.
                 this._groupPads.splice(this._groupPads.indexOf(device), 1);
                 this._updatePadChooser();
-
             }
         });