DAR-2047: Removing mysql statements from cleanupStarter

https://wikia-inc.atlassian.net/browse/DAR-2047

'Draft' category was removed in 2007 (http://starter.wikia.com/wiki/Special:Undelete?target=Category%3ADraft).
The idea of this category was to mark pages which shouldn't be copied to new wiki (http://starter.wikia.com/wiki/Special:Undelete?target=Category%3ADraft&timestamp=20061028171027&diff=prev&cb=7623) but it isn't used anymore.