remove old anvil cruft
remove old anvil cruft

ekkleesia2/heroku-buildpack-python,nemesiscodex/heroku-buildpack-python,ojacobson/heroku-buildpack-python,pkumar-appd/python-buildpack,rbtying/heroku-buildpack-python,jvenezia/heroku-buildpack-python,lukaszkorecki/heroku-buildpack-python,maciejgryka/heroku-buildpack-spcedge,ruscoder/heroku-buildpack-python,samuelhavron/heroku-buildpack-python,doda/heroku-buildpack-python,liyanchang/cloudfoundary-buildbot-buildpack,Mause/heroku-buildpack-python,smalleats/heroku-buildpack-python,zakdoek/heroku-buildpack-django,arnaudlimbourg/heroku-buildpack-python,dubsmash/heroku-buildpack-python,andrespires/python-buildpack,cloudfoundry/python-buildpack,manufacturedba/heroku-buildpack-python,samuelhavron/heroku-buildpack-python,heroku/heroku-buildpack-python,Nazanin84/python-buildpack,Nazanin84/python-buildpack,rollokb/heroku-buildpack-python,samuelhavron/heroku-buildpack-python,wbrefvem/heroku-buildpack-python,skilljar/heroku-buildpack-python,PerceptumNL/heroku-buildpack-python,jimlindeman/python-buildpack-collectd,liyanchang/cloudfoundary-buildbot-buildpack,dulaccc/heroku-buildpack-geodjango,driftyco/heroku-buildpack-sphinx,andrespires/python-buildpack,pkumar-appd/python-buildpack,doda/heroku-buildpack-python,junyoed/heroku-buildpack-python,ad-m/heroku-buildpack-python,joshfriend/heroku-buildpack-python,swils/heroku-buildpack-python,HousekeepLtd/heroku-buildpack-python,18F/python-buildpack,monological/heroku-buildpack-python-opencv,swanson/heroku-buildpack-python-ortools,slorg1/heroku-buildpack-python,Scalingo/python-buildpack,jimlindeman/python-buildpack-collectd,tommyvn/heroku-buildpack-python,gitricko/apt-python-buildpack,kowito/python-buildpack,jamarparris/heroku-buildpack-python-swig,ephemerallabs/heroku-buildpack-python,martingascon/heroku-buildpack-python,AltSchool/heroku-buildpack-python,benmurden/heroku-buildpack-python-ember,18F/python-buildpack,kowito/python-buildpack,benjaminfox/heroku-buildpack-python-geoip,Nazanin84/python-buildpack,grivescorbett/heroku-buildpack-python,Scalingo/python-buildpack,samuelhavron/heroku-buildpack-python,ryanhiebert/heroku-buildpack-python,rapilabs/heroku-buildpack-python,benjaminfox/heroku-buildpack-python-geoip,oberlin/heroku-buildpack-python,cloudfoundry/python-buildpack,blazekadam/open2,DylanLukes/heroku-buildpack-python,joshisa/python-buildpack,samuelhavron/heroku-buildpack-python,bobsilverberg/heroku-buildpack-python-peep,stalnacke/heroku-buildpack-python,maxcountryman/heroku-buildpack-python,gaumire/heroku-buildpack-python,agriffis/heroku-buildpack-python,18F/python-buildpack,ad-m/heroku-buildpack-python,kowito/python-buildpack,miraculixx/heroku-buildpack-python,benmurden/heroku-buildpack-python-ember,beni55/heroku-buildpack-python,HanSooloo/heroku-buildpack-python,nwkotto/geodjango-buildpack-with-geos,jimlindeman/python-buildpack-collectd,pmclanahan/heroku-buildpack-python-peep,brightforme/heroku-buildpack-python,andela-brotich/wger-buildpack-python,cloudfoundry/python-buildpack,soapril/heroku-buildpack-python,wbrefvem/heroku-buildpack-python,plangrid/heroku-buildpack-python,joshisa/python-buildpack,adamroth/heroku-buildpack-python-pdftk,WonderThink/heroku-buildpack-python-ffmpeg-geoip,gitricko/apt-python-buildpack,edmorley/heroku-buildpack-python,gitricko/apt-python-buildpack,pkumar-appd/python-buildpack,loanzen/heroku-buildpack-python,edenspiekermann-amsterdam/heroku-buildpack-python,samuelhavron/heroku-buildpack-python,AltSchool/heroku-buildpack-python,cclauss/heroku-buildpack-python,andrespires/python-buildpack,liyanchang/cloudfoundary-buildbot-buildpack,zakdoek/heroku-buildpack-django,marianzange/heroku-buildpack-python,samuelhavron/heroku-buildpack-python,kvarga/heroku-buildpack-python,joshisa/python-buildpack,resmio/heroku-buildpack-geodjango,ywarezk/heroku-buildpack-geodjango,samuelhavron/heroku-buildpack-python,heroku/heroku-buildpack-python,TipWander/heroku-buildpack-geodjango