Remove ghc-pkg from the list of dep files we build during phase 0
Remove ghc-pkg from the list of dep files we build during phase 0

I don't think it's necessary to build ghc-pkg that early.

shlevy/ghc,wxwxwwxxx/ghc,ml9951/ghc,jstolarek/ghc,da-x/ghc,nushio3/ghc,ekmett/ghc,tibbe/ghc,mfine/ghc,urbanslug/ghc,nushio3/ghc,gcampax/ghc,fmthoma/ghc,gcampax/ghc,forked-upstream-packages-for-ghcjs/ghc,green-haskell/ghc,green-haskell/ghc,lukexi/ghc-7.8-arm64,AlexanderPankiv/ghc,forked-upstream-packages-for-ghcjs/ghc,hferreiro/replay,christiaanb/ghc,mcschroeder/ghc,green-haskell/ghc,sdiehl/ghc,sgillespie/ghc,mettekou/ghc,anton-dessiatov/ghc,spacekitteh/smcghc,anton-dessiatov/ghc,ghc-android/ghc,lukexi/ghc-7.8-arm64,acowley/ghc,mfine/ghc,forked-upstream-packages-for-ghcjs/ghc,mettekou/ghc,ryantm/ghc,vTurbine/ghc,ryantm/ghc,wxwxwwxxx/ghc,gridaphobe/ghc,hferreiro/replay,oldmanmike/ghc,ghc-android/ghc,bitemyapp/ghc,da-x/ghc,ryantm/ghc,TomMD/ghc,TomMD/ghc,snoyberg/ghc,sdiehl/ghc,gridaphobe/ghc,olsner/ghc,tibbe/ghc,wxwxwwxxx/ghc,anton-dessiatov/ghc,TomMD/ghc,sgillespie/ghc,olsner/ghc,hferreiro/replay,nkaretnikov/ghc,gcampax/ghc,holzensp/ghc,snoyberg/ghc,bitemyapp/ghc,elieux/ghc,nushio3/ghc,AlexanderPankiv/ghc,mettekou/ghc,nushio3/ghc,frantisekfarka/ghc-dsi,fmthoma/ghc,frantisekfarka/ghc-dsi,christiaanb/ghc,GaloisInc/halvm-ghc,mettekou/ghc,TomMD/ghc,sdiehl/ghc,shlevy/ghc,AlexanderPankiv/ghc,ryantm/ghc,siddhanathan/ghc,TomMD/ghc,oldmanmike/ghc,gcampax/ghc,mettekou/ghc,jstolarek/ghc,hferreiro/replay,sdiehl/ghc,oldmanmike/ghc,forked-upstream-packages-for-ghcjs/ghc,ml9951/ghc,anton-dessiatov/ghc,frantisekfarka/ghc-dsi,siddhanathan/ghc,vikraman/ghc,da-x/ghc,olsner/ghc,GaloisInc/halvm-ghc,jstolarek/ghc,sgillespie/ghc,AlexanderPankiv/ghc,vTurbine/ghc,tjakway/ghcjvm,urbanslug/ghc,mfine/ghc,vikraman/ghc,urbanslug/ghc,hferreiro/replay,elieux/ghc,hferreiro/replay,frantisekfarka/ghc-dsi,urbanslug/ghc,urbanslug/ghc,vTurbine/ghc,tibbe/ghc,nushio3/ghc,nushio3/ghc,vikraman/ghc,sdiehl/ghc,acowley/ghc,tibbe/ghc,acowley/ghc,nathyong/microghc-ghc,ekmett/ghc,christiaanb/ghc,mfine/ghc,shlevy/ghc,spacekitteh/smcghc,sgillespie/ghc,nkaretnikov/ghc,gridaphobe/ghc,mcschroeder/ghc,holzensp/ghc,ezyang/ghc,ghc-android/ghc,ml9951/ghc,lukexi/ghc-7.8-arm64,holzensp/ghc,shlevy/ghc,gridaphobe/ghc,mcschroeder/ghc,elieux/ghc,GaloisInc/halvm-ghc,elieux/ghc,lukexi/ghc-7.8-arm64,gridaphobe/ghc,mettekou/ghc,GaloisInc/halvm-ghc,acowley/ghc,da-x/ghc,nkaretnikov/ghc,olsner/ghc,acowley/ghc,jstolarek/ghc,anton-dessiatov/ghc,elieux/ghc,vikraman/ghc,forked-upstream-packages-for-ghcjs/ghc,fmthoma/ghc,oldmanmike/ghc,sgillespie/ghc,AlexanderPankiv/ghc,nathyong/microghc-ghc,olsner/ghc,sdiehl/ghc,siddhanathan/ghc,gridaphobe/ghc,ezyang/ghc,ryantm/ghc,wxwxwwxxx/ghc,olsner/ghc,da-x/ghc,snoyberg/ghc,mfine/ghc,nushio3/ghc,ml9951/ghc,gcampax/ghc,nathyong/microghc-ghc,nathyong/microghc-ghc,ml9951/ghc,mfine/ghc,AlexanderPankiv/ghc,vikraman/ghc,nathyong/microghc-ghc,AlexanderPankiv/ghc,lukexi/ghc,holzensp/ghc,wxwxwwxxx/ghc,jstolarek/ghc,forked-upstream-packages-for-ghcjs/ghc,sgillespie/ghc,ekmett/ghc,acowley/ghc,vikraman/ghc,mfine/ghc,tjakway/ghcjvm,wxwxwwxxx/ghc,GaloisInc/halvm-ghc,mettekou/ghc,bitemyapp/ghc,GaloisInc/halvm-ghc,shlevy/ghc,anton-dessiatov/ghc,ghc-android/ghc,sdiehl/ghc,snoyberg/ghc,fmthoma/ghc,gcampax/ghc,christiaanb/ghc,ezyang/ghc,oldmanmike/ghc,green-haskell/ghc,vTurbine/ghc,sgillespie/ghc,mcschroeder/ghc,TomMD/ghc,mcschroeder/ghc,gridaphobe/ghc,vikraman/ghc,tjakway/ghcjvm,tjakway/ghcjvm,lukexi/ghc-7.8-arm64,spacekitteh/smcghc,acowley/ghc,spacekitteh/smcghc,ezyang/ghc,bitemyapp/ghc,ezyang/ghc,urbanslug/ghc,da-x/ghc,ghc-android/ghc,christiaanb/ghc,nathyong/microghc-ghc,shlevy/ghc,elieux/ghc,anton-dessiatov/ghc,lukexi/ghc,tjakway/ghcjvm,ml9951/ghc,siddhanathan/ghc,ezyang/ghc,bitemyapp/ghc,snoyberg/ghc,urbanslug/ghc,oldmanmike/ghc,ghc-android/ghc,hferreiro/replay,ekmett/ghc,lukexi/ghc,siddhanathan/ghc,ekmett/ghc,vTurbine/ghc,spacekitteh/smcghc,vTurbine/ghc,frantisekfarka/ghc-dsi,gcampax/ghc,nkaretnikov/ghc,tjakway/ghcjvm,christiaanb/ghc,da-x/ghc,ml9951/ghc,wxwxwwxxx/ghc,shlevy/ghc,tibbe/ghc,holzensp/ghc,nkaretnikov/ghc,fmthoma/ghc,tjakway/ghcjvm,lukexi/ghc,GaloisInc/halvm-ghc,ezyang/ghc,vTurbine/ghc,fmthoma/ghc,TomMD/ghc,fmthoma/ghc,mcschroeder/ghc,forked-upstream-packages-for-ghcjs/ghc,oldmanmike/ghc,snoyberg/ghc,christiaanb/ghc,snoyberg/ghc,elieux/ghc,nkaretnikov/ghc,nkaretnikov/ghc,nathyong/microghc-ghc,ml9951/ghc,siddhanathan/ghc,ghc-android/ghc,green-haskell/ghc,olsner/ghc,siddhanathan/ghc,lukexi/ghc,mcschroeder/ghc