FIX STORM-1494 remove duplicate ID and xml snippet

indra/newview/skins/default/xui/en/menu_viewer.xml

@@ -2931,18 +2931,6 @@
                  function="Floater.Toggle"
                  parameter="region_debug_console" />
             </menu_item_check>
-            <menu_item_check
-             label="Region Debug Console"
-             name="Region Debug Console"
-             shortcut="control|shift|`"
-             use_mac_ctrl="true">
-                <menu_item_check.on_check
-                 function="Floater.Visible"
-                 parameter="region_debug_console" />
-                <menu_item_check.on_click
-                 function="Floater.Toggle"
-                 parameter="region_debug_console" />
-            </menu_item_check>
             <menu_item_separator />
 
             <menu_item_check