Remove some dead code in page_revisions
Remove some dead code in page_revisions

milimetric/restbase,inverno/restbase,gwicke/restbase,cscott/restbase,wikimedia/restbase,Krenair/restbase,eevans/restbase,eevans/restbase,gwicke/restbase,d00rman/restbase,Pchelolo/restbase,wikimedia/restbase,Krenair/restbase,physikerwelt/restbase,wikimedia/mediawiki-services-restbase,physikerwelt/restbase,wikimedia/hyperswitch,wikimedia/mediawiki-services-restbase,d00rman/restbase,cscott/restbase,Pchelolo/restbase,inverno/restbase,milimetric/restbase