Remove upstreamed grace helper

See https://trisquel.info/en/issues/20736 for further details

helpers/DATA/gnome-control-center/gnomecc.menu.in

@@ -1,131 +0,0 @@
-<!DOCTYPE Menu PUBLIC "-//freedesktop//DTD Menu 1.0//EN"
- "http://www.freedesktop.org/standards/menu-spec/1.0/menu.dtd">
-
-<Menu>
-  <Name>Control Center</Name>
-  <Directory>gnomecc.directory</Directory>
-
-  <!-- Read standard .directory and .desktop file locations -->
-  <AppDir>/usr/share/applications/</AppDir>
-  <DefaultDirectoryDirs/>
-
-  <!-- Read in overrides and child menus from gnomecc-merged/ -->
-  <DefaultMergeDirs/>
-
-   <!-- Sort the control center categories -->
-   <Layout>
-     <Menuname>Personal</Menuname>
-     <Menuname>System</Menuname>
-     <Menuname>Other</Menuname>
-     <Merge type="all" />
-   </Layout>
-
-  <!-- Stuff in the toplevel (Other category) -->
-  <Include>
-    <And>
-      <Category>Settings</Category>
-      <Not>
-        <Or>
-          <Category>X-GNOME-PersonalSettings</Category>
-          <Category>DesktopSettings</Category>
-          <Category>HardwareSettings</Category>
-          <Category>X-GNOME-SystemSettings</Category>
-          <Category>System</Category>
-        </Or>
-      </Not>
-    </And>
-  </Include>
-
-  <!-- Avoid the shell having a launcher for itself -->
-  <Exclude>
-    <Filename>gnome-control-center.desktop</Filename>
-  </Exclude>
-
-  <!-- Personal category -->
-  <Menu>
-    <Name>Personal</Name>
-    <Directory>Personal.directory</Directory>
-    <Include>
-      <And>
-        <Category>Settings</Category>
-        <Not>
-        <Or>
-         <Category>System</Category>
-         <Category>X-GNOME-SystemSettings</Category>
-        </Or>
-      </Not>
-      </And>
-<Or>
-<Filename>gnome-universal-access-panel.desktop</Filename>
-<Filename>gnome-info-panel.desktop</Filename>
-</Or>
-    </Include>
-<Exclude>
-<Filename>gnome-printers-panel.desktop</Filename>
-<Filename>gnome-network-panel.desktop</Filename>
-<Filename>evolution-settings.desktop</Filename>
-<Filename>language-selector.desktop</Filename>
-<Filename>nm-connection-editor.desktop</Filename>
-<Filename>palimpsest.desktop</Filename>
-<Filename>gnome-online-accounts-panel.desktop</Filename>
-<Filename>gnome-disks.desktop</Filename>
-<Filename>im-config.desktop</Filename>
-<Filename>gnome-user-share-properties.desktop</Filename>
-</Exclude>
-  </Menu> <!-- End Personal -->
-
-
-  <!-- System category -->
-  <Menu>
-    <Name>System</Name>
-    <Directory>System.directory</Directory>
-    <Include>
-      <And>
-         <Category>System</Category>
-        <Category>Settings</Category>
-      </And>
-<Or>
-         <Category>X-GNOME-SystemSettings</Category>
-<Filename>language-selector.desktop</Filename>
-<Filename>gnome-ppp.desktop</Filename>
-<Filename>baobab.desktop</Filename>
-<Filename>gnome-system-monitor.desktop</Filename>
-<Filename>gnome-printers-panel.desktop</Filename>
-<Filename>gnome-disks.desktop</Filename>
-<Filename>gnome-network-panel.desktop</Filename>
-</Or>
-    </Include>
-<Exclude>
-<Filename>gnome-universal-access-panel.desktop</Filename>
-<Filename>nm-connection-editor.desktop</Filename>
-<Filename>gnome-app-install.desktop</Filename>
-<Filename>time.desktop</Filename>
-<Filename>users.desktop</Filename>
-<Filename>network.desktop</Filename>
-<Filename>gnome-info-panel.desktop</Filename>
-<Filename>system-config-printer.desktop</Filename>
-</Exclude>
-  </Menu> <!-- End System -->
-
-  <!-- Other category -->
-  <Menu>
-    <Name>Other</Name>
-    <Directory>X-GNOME-Other.directory</Directory>
-    <Include>
-      <And>
-        <Category>Settings</Category>
-        <Category>X-GNOME-Settings-Panel</Category>
-        <Not>
-          <Or>
-            <Category>X-GNOME-PersonalSettings</Category>
-            <Category>X-GNOME-SystemSettings</Category>
-            <Category>HardwareSettings</Category>
-            <Filename>gnome-control-center.desktop</Filename>
-          </Or>
-        </Not>
-      </And>
-    </Include>
-  </Menu> <!-- End Other -->
-
-</Menu>     <!-- End CC -->
-