Remove set hide_mode from protocol

compositor/PantheonShell.vala

@@ -57,7 +57,6 @@ namespace GreeterCompositor {
             set_anchor,
             focus_panel,
             set_size,
-            set_hide_mode,
         };
 
         wayland_pantheon_widget_interface = {
@@ -312,23 +311,6 @@ namespace GreeterCompositor {
         ShellClientsManager.get_instance ().set_size (window, width, height);
     }
 
-    internal static void set_hide_mode (Wl.Client client, Wl.Resource resource, [CCode (type = "uint32_t")] Pantheon.Desktop.HideMode hide_mode) {
-        unowned PanelSurface? panel_surface = resource.get_user_data<PanelSurface> ();
-        if (panel_surface.wayland_surface == null) {
-            warning ("Window tried to set hide mode but wayland surface is null.");
-            return;
-        }
-
-        Meta.Window? window;
-        panel_surface.wayland_surface.get ("window", out window, null);
-        if (window == null) {
-            warning ("Window tried to set hide mode but wayland surface had no associated window.");
-            return;
-        }
-
-        ShellClientsManager.get_instance ().set_hide_mode (window, hide_mode);
-    }
-
     internal static void set_keep_above (Wl.Client client, Wl.Resource resource) {
         unowned ExtendedBehaviorSurface? eb_surface = resource.get_user_data<ExtendedBehaviorSurface> ();
         if (eb_surface.wayland_surface == null) {

protocol/pantheon-desktop-shell-v1.xml

@@ -90,14 +90,6 @@
       <arg name="width" type="int"/>
       <arg name="height" type="int"/>
     </request>
-
-    <request name="set_hide_mode">
-      <description summary="set panel hide mode">
-        Tell the shell when to hide the panel.
-      </description>
-
-      <arg name="hide_mode" type="uint" enum="hide_mode" summary="hide mode"/>
-    </request>
   </interface>
 
   <interface name="io_elementary_pantheon_widget_v1" version="1">