Remove dead view cache code.
Remove dead view cache code.

Now that cache files contain the response headers, this is no longer
needed. Remove what is now duplicate code.

Refs #2358

CakeDC/cakephp,eboominathan/cakephp,et304383/passbolt_api,yinhe007/cakephp,pbaire/cakephp,tisu2tisu/cakephp,berrygoudswaard/cakephp,ADmad/cakephp,elboletaire/cakephp,kumamidori/cakephp,nrother/cakephp,bravo-kernel/cakephp,cakephp/cakephp,mvdriel/cakephp,erikfig/cakephp,elboletaire/cakephp,bravo-kernel/cakephp,CakeDC/cakephp,jjj117/cakephp,HavokInspiration/cakephp,erikfig/cakephp,akintoey/cakephp,michaelze/cakephp,Phillaf/cakephp,gmponos/cakephp,et304383/passbolt_api,kumamidori/cakephp,davidyell/cakephp,pbaire/cakephp,jerems02/cakephp,mvdriel/cakephp,garethellis36/cakephp,mvdriel/cakephp,gmponos/cakephp,yinhe007/cakephp,cakephp/cakephp,cakephp/cakephp,nrother/cakephp,dakota/cakephp,CVO-Technologies/cakephp,ndm2/cakephp,eryw/cakephp,tisu2tisu/cakephp,CakeDC/cakephp,web-player/cakephp,cakephp-fr/cakephp,burriko/cakephp,et304383/passbolt_api,bravo-kernel/cakephp,ionas/cakephp,dkarvounaris/cakephp,dakota/cakephp,khoimt/cakephp-study,cakephp/cakephp,erikfig/cakephp,dkarvounaris/cakephp,et304383/passbolt_api,ndm2/cakephp,ionas/cakephp,tgr0ss/cakephp,michaelze/cakephp,mvdriel/cakephp,dkarvounaris/cakephp,ndm2/cakephp,kumamidori/cakephp,petteyg/cakephp,Phillaf/cakephp,thinkingmedia/cakephp,adopico/cakephp,dakota/cakephp,ndm2/cakephp,burriko/cakephp,Balachan27/cakephp,jjj117/cakephp,HavokInspiration/cakephp,tenkoma/cakephp,adopico/cakephp,davidyell/cakephp,CVO-Technologies/cakephp,nrother/cakephp,CakeDC/cakephp,et304383/passbolt_api,Balachan27/cakephp,cakephp-fr/cakephp,jerems02/cakephp,justinyost/cakephp,Balachan27/cakephp,eboominathan/cakephp,timhoeppner/cakephp,berrygoudswaard/cakephp,michaelze/cakephp,ADmad/cakephp,khoimt/cakephp-study,tgr0ss/cakephp,tenkoma/cakephp,thinkingmedia/cakephp,burriko/cakephp,adopico/cakephp,eryw/cakephp,ionas/cakephp,petteyg/cakephp,HavokInspiration/cakephp,eryw/cakephp,gmponos/cakephp,akintoey/cakephp,web-player/cakephp,jeffblack360/cakephp,garethellis36/cakephp,tenkoma/cakephp,CVO-Technologies/cakephp,jeffblack360/cakephp,tgr0ss/cakephp,justinyost/cakephp,thinkingmedia/cakephp,eboominathan/cakephp,tisu2tisu/cakephp,web-player/cakephp,ADmad/cakephp,khoimt/cakephp-study,jjj117/cakephp,cakephp-fr/cakephp,ADmad/cakephp,garethellis36/cakephp,timhoeppner/cakephp,davidyell/cakephp,berrygoudswaard/cakephp,dakota/cakephp,jeffblack360/cakephp,tenkoma/cakephp,yinhe007/cakephp,Phillaf/cakephp,petteyg/cakephp,akintoey/cakephp,timhoeppner/cakephp,pbaire/cakephp,justinyost/cakephp,jerems02/cakephp,elboletaire/cakephp,petteyg/cakephp,garethellis36/cakephp