[gtk+] Remove GtkShortcutsGesture from docs

[Kalev Lember <klember src gnome org>]

commit d4f841049df1032dc710ae351dc5f6d71b8189b2
Author: Kalev Lember <klember redhat com>
Date:   Tue Dec 8 18:51:05 2015 +0100

    Remove GtkShortcutsGesture from docs
    
    Commit c83ab24 that dropped GtkShortcutsGesture left in one last reference in
    docs; this drops it as well.

 docs/reference/gtk/gtk-docs.sgml |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/docs/reference/gtk/gtk-docs.sgml b/docs/reference/gtk/gtk-docs.sgml
index 8311d0e..761c722 100644
--- a/docs/reference/gtk/gtk-docs.sgml
+++ b/docs/reference/gtk/gtk-docs.sgml
@@ -246,7 +246,6 @@
       <xi:include href="xml/gtkshortcutssection.xml" />
       <xi:include href="xml/gtkshortcutsgroup.xml" />
       <xi:include href="xml/gtkshortcutsshortcut.xml" />
-      <xi:include href="xml/gtkshortcutsgesture.xml" />
     </chapter>
 
     <chapter id="MiscObjects">