Remove reference to glib in the HACKING doc.
Remove reference to glib in the HACKING doc.

steveyen/moxi,steveyen/moxi,zbase/moxi,zbase/moxi,couchbase/moxi,zbase/moxi,couchbase/moxi,membase/moxi,steveyen/moxi,zbase/moxi,membase/moxi,couchbase/moxi,membase/moxi,steveyen/moxi,couchbase/moxi,zbase/moxi,couchbase/moxi,membase/moxi,membase/moxi,couchbase/moxi,membase/moxi,steveyen/moxi