Remove broken database related features for i18n shell.
Remove broken database related features for i18n shell.

The i18n shell has not had any database related features for quite
a while. Remove them until we can sort out how to provide the ability to
seed the i18n tables again.

Refs #3835

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