bNeedUpdate is set to false twice

Change-Id: I10348d36828008ebddc3b923e2e9d252d0394fa6
Reviewed-on: https://gerrit.libreoffice.org/37079Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

svtools/source/misc/embedhlp.cxx

@@ -356,7 +356,6 @@ void EmbeddedObjectRef::Clear()
         }
 
         mpImpl->mxObj = nullptr;
-        mpImpl->bNeedUpdate = false;
     }
 
     mpImpl->pContainer = nullptr;