Remove HHVM-nightly builds
Remove HHVM-nightly builds

This also simplies the allowed failures for HHVM
vortgo/dbal,vutung2311/dbal,helicon-os/doctrine-dbal,stof/dbal,AlexDpy/dbal,Tobion/dbal,BenMorel/dbal,helicon-os/doctrine-dbal,v-bartusevicius/dbal,zeroedin-bill/dbal,lcobucci/dbal,lafourchette/dbal,wuxu92/dbal,mathroc/dbal,bspeterson/dbal,kimhemsoe/dbal,gencer/dbal,gencer/dbal,mathroc/dbal,DHager/dbal,AlexDpy/dbal,janschoenherr/dbal,lcobucci/dbal,shivergard/dbal,mikeSimonson/dbal,nfrignani/dbal,BenMorel/dbal,zeroedin-bill/dbal,deeky666/dbal,stchr/dbal,vutung2311/dbal,tk-s/dbal,shivergard/dbal,mRoca/dbal,tk-s/dbal,lafourchette/dbal,stchr/dbal,vortgo/dbal,v-bartusevicius/dbal,mRoca/dbal,drieschel/dbal,stof/dbal,doctrine/dbal,mikeSimonson/dbal,nfrignani/dbal,deeky666/dbal,DHager/dbal,doctrine/dbal,janschoenherr/dbal,drieschel/dbal,wuxu92/dbal,bspeterson/dbal,Tobion/dbal,kimhemsoe/dbal