PanelWindow: Remove leftover size handling (#684)

This was needed because in gtk3 we would fullscreen the wingpanel
when an indicator was opened but we don't have to do that anymore.

Author: leolost2605

src/PanelWindow.vala

@@ -64,7 +64,7 @@ public class Wingpanel.PanelWindow : Gtk.Window {
             }
         });
 
-        notify["scale-factor"].connect (on_scale_changed);
+        notify["scale-factor"].connect (update_panel_dimensions);
     }
 
     construct {
@@ -98,22 +98,6 @@ public class Wingpanel.PanelWindow : Gtk.Window {
         popover_manager.toggle_popover_visible (name);
     }
 
-    private void on_scale_changed () {
-        if (desktop_panel != null) {
-            desktop_panel.set_size (-1, get_actual_height ());
-        }
-
-        update_panel_dimensions ();
-    }
-
-    private int get_actual_height () {
-        if (!Services.DisplayConfig.is_logical_layout ()) {
-            return get_height () * get_scale_factor ();
-        }
-
-        return get_height ();
-    }
-
     public void registry_handle_global (Wl.Registry wl_registry, uint32 name, string @interface, uint32 version) {
         if (@interface == "io_elementary_pantheon_shell_v1") {
             desktop_shell = wl_registry.bind<Pantheon.Desktop.Shell> (name, ref Pantheon.Desktop.Shell.iface, uint32.min (version, 1));