keybindings: Remove 'toggle-recording' binding

The keybinding is only useful when using GNOME Shell, so now that we
can define keybindings outside of mutter, move it there.

https://bugzilla.gnome.org/show_bug.cgi?id=674376

src/core/keybindings.c

@@ -2972,17 +2972,6 @@ handle_panel (MetaDisplay    *display,
   meta_error_trap_pop (display);
 }
 
-static void
-handle_toggle_recording (MetaDisplay    *display,
-                         MetaScreen     *screen,
-                         MetaWindow     *window,
-                         XEvent         *event,
-                         MetaKeyBinding *binding,
-                         gpointer        dummy)
-{
-  g_signal_emit_by_name (screen, "toggle-recording");
-}
-
 static void
 handle_activate_window_menu (MetaDisplay    *display,
                       MetaScreen     *screen,
@@ -3886,13 +3875,6 @@ init_builtin_key_bindings (MetaDisplay *display)
                           META_KEYBINDING_ACTION_PANEL_RUN_DIALOG,
                           handle_panel, META_KEYBINDING_ACTION_PANEL_RUN_DIALOG);
 
-  add_builtin_keybinding (display,
-                          "toggle-recording",
-                          mutter_keybindings,
-                          META_KEY_BINDING_NONE,
-                          META_KEYBINDING_ACTION_TOGGLE_RECORDING,
-                          handle_toggle_recording, 0);
-
   add_builtin_keybinding (display,
                           "set-spew-mark",
                           common_keybindings,

src/core/screen.c

@@ -83,7 +83,6 @@ enum
 enum
 {
   RESTACKED,
-  TOGGLE_RECORDING,
   WORKSPACE_ADDED,
   WORKSPACE_REMOVED,
   WORKSPACE_SWITCHED,
@@ -230,14 +229,6 @@ meta_screen_class_init (MetaScreenClass *klass)
                   NULL, NULL, NULL,
                   G_TYPE_NONE, 1, G_TYPE_POINTER);
 
-  screen_signals[TOGGLE_RECORDING] =
-    g_signal_new ("toggle-recording",
-                  G_TYPE_FROM_CLASS (klass),
-                  G_SIGNAL_RUN_LAST,
-                  0,
-                  NULL, NULL, NULL,
-                  G_TYPE_NONE, 0);
-
   screen_signals[WORKAREAS_CHANGED] =
     g_signal_new ("workareas-changed",
                   G_TYPE_FROM_CLASS (object_class),

src/org.gnome.mutter.gschema.xml.in

@@ -89,10 +89,6 @@
   </schema>
   <schema id="org.gnome.mutter.keybindings" path="/org/gnome/mutter/keybindings/">
 
-    <key name="toggle-recording" type="as">
-      <default><![CDATA[['<Control><Shift><Alt>r']]]></default>
-    </key>
-
     <key name="toggle-tiled-left" type="as">
       <default><![CDATA[['<Super>Left']]]></default>
     </key>