Remove osmo from the menu, since it's not in the default installation.

Thanks karl anliot for the notice. (LP: #1035780)

debian/changelog

@@ -11,6 +11,8 @@ lubuntu-default-settings (0.30) UNRELEASED; urgency=low
    - Set drawContents to "no" on resize, to reduce the use of resize.
   * usr/share/lubuntu/openbox/menu.xml
    - Use gnome-disks for Disk utility item.
+   - Remove osmo from the menu, since it's not in the default installation.
+     Thanks karl anliot for the notice. (LP: #1035780)
   * etc/xdg/lubuntu/menus/lxgames-applications.menu :
    - Add a specific menu structure for a games session.
   * usr/bin/startlubuntu-lxgames :

usr/share/lubuntu/openbox/menu.xml

@@ -99,11 +99,6 @@
       <command>gnumeric</command>
     </action>
   </item>
-  <item label="Osmo">
-    <action name="Execute">
-      <command>osmo</command>
-    </action>
-  </item>
   <item label="Evince">
     <action name="Execute">
       <command>evince</command>