listbox field doesn't exist any longer but form xml (for unknown) reasons has not been updated.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@41611 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_dms/SkinTemplateItem/portal_skins/erp5_dms/ExternalSource_view.xml

@@ -69,7 +69,7 @@
                     <key> <string>bottom (Preview)</string> </key>
                     <value>
                       <list>
-                        <string>listbox</string>
+                        <string></string>
                       </list>
                     </value>
                 </item>

bt5/erp5_dms/bt/revision

-1228
\ No newline at end of file
+1229