Remove warnings for -fwarn-incomplete-patterns
Remove warnings for -fwarn-incomplete-patterns

And remove one unused bind.

See
https://phabricator.haskell.org/rGHCc0ad5bc03e02ce0d7d545599e4b1a68a6f727f2b
for concerns raised prompting this change.

ezyang/ghc,vTurbine/ghc,nkaretnikov/ghc,vikraman/ghc,mfine/ghc,acowley/ghc,ghc-android/ghc,anton-dessiatov/ghc,shlevy/ghc,nushio3/ghc,sgillespie/ghc,urbanslug/ghc,sdiehl/ghc,TomMD/ghc,snoyberg/ghc,shlevy/ghc,nushio3/ghc,sgillespie/ghc,tjakway/ghcjvm,snoyberg/ghc,GaloisInc/halvm-ghc,ghc-android/ghc,siddhanathan/ghc,ezyang/ghc,olsner/ghc,da-x/ghc,tjakway/ghcjvm,sdiehl/ghc,gridaphobe/ghc,vTurbine/ghc,GaloisInc/halvm-ghc,GaloisInc/halvm-ghc,shlevy/ghc,TomMD/ghc,anton-dessiatov/ghc,mcschroeder/ghc,olsner/ghc,GaloisInc/halvm-ghc,elieux/ghc,gridaphobe/ghc,anton-dessiatov/ghc,olsner/ghc,olsner/ghc,da-x/ghc,AlexanderPankiv/ghc,wxwxwwxxx/ghc,da-x/ghc,sgillespie/ghc,wxwxwwxxx/ghc,ml9951/ghc,vikraman/ghc,anton-dessiatov/ghc,tjakway/ghcjvm,oldmanmike/ghc,olsner/ghc,gridaphobe/ghc,anton-dessiatov/ghc,vTurbine/ghc,anton-dessiatov/ghc,vTurbine/ghc,oldmanmike/ghc,oldmanmike/ghc,oldmanmike/ghc,ghc-android/ghc,oldmanmike/ghc,da-x/ghc,GaloisInc/halvm-ghc,acowley/ghc,mfine/ghc,elieux/ghc,wxwxwwxxx/ghc,elieux/ghc,acowley/ghc,tjakway/ghcjvm,siddhanathan/ghc,nushio3/ghc,elieux/ghc,snoyberg/ghc,AlexanderPankiv/ghc,shlevy/ghc,olsner/ghc,TomMD/ghc,shlevy/ghc,sgillespie/ghc,nushio3/ghc,anton-dessiatov/ghc,sgillespie/ghc,ml9951/ghc,mcschroeder/ghc,vikraman/ghc,sdiehl/ghc,nkaretnikov/ghc,siddhanathan/ghc,gridaphobe/ghc,ezyang/ghc,ghc-android/ghc,snoyberg/ghc,vTurbine/ghc,gridaphobe/ghc,acowley/ghc,mcschroeder/ghc,nkaretnikov/ghc,mfine/ghc,mcschroeder/ghc,urbanslug/ghc,wxwxwwxxx/ghc,ghc-android/ghc,ml9951/ghc,vikraman/ghc,mettekou/ghc,urbanslug/ghc,mcschroeder/ghc,mfine/ghc,tjakway/ghcjvm,TomMD/ghc,sdiehl/ghc,AlexanderPankiv/ghc,da-x/ghc,GaloisInc/halvm-ghc,mcschroeder/ghc,sgillespie/ghc,tjakway/ghcjvm,acowley/ghc,ezyang/ghc,gridaphobe/ghc,wxwxwwxxx/ghc,nkaretnikov/ghc,GaloisInc/halvm-ghc,nkaretnikov/ghc,nkaretnikov/ghc,mettekou/ghc,mettekou/ghc,siddhanathan/ghc,mcschroeder/ghc,snoyberg/ghc,acowley/ghc,AlexanderPankiv/ghc,nushio3/ghc,oldmanmike/ghc,wxwxwwxxx/ghc,siddhanathan/ghc,mfine/ghc,vikraman/ghc,AlexanderPankiv/ghc,snoyberg/ghc,mettekou/ghc,vikraman/ghc,mettekou/ghc,tjakway/ghcjvm,sdiehl/ghc,ml9951/ghc,vTurbine/ghc,shlevy/ghc,ezyang/ghc,nushio3/ghc,mfine/ghc,ghc-android/ghc,sgillespie/ghc,siddhanathan/ghc,ghc-android/ghc,TomMD/ghc,siddhanathan/ghc,oldmanmike/ghc,mettekou/ghc,ezyang/ghc,ml9951/ghc,urbanslug/ghc,AlexanderPankiv/ghc,nkaretnikov/ghc,vikraman/ghc,gridaphobe/ghc,da-x/ghc,sdiehl/ghc,mfine/ghc,snoyberg/ghc,urbanslug/ghc,shlevy/ghc,elieux/ghc,ml9951/ghc,wxwxwwxxx/ghc,AlexanderPankiv/ghc,elieux/ghc,olsner/ghc,da-x/ghc,elieux/ghc,vTurbine/ghc,acowley/ghc,nushio3/ghc,sdiehl/ghc,ml9951/ghc,urbanslug/ghc,ezyang/ghc,TomMD/ghc,urbanslug/ghc,ml9951/ghc,TomMD/ghc,mettekou/ghc