Remove obsolete comment about the implementation of foldl
Remove obsolete comment about the implementation of foldl

shlevy/ghc,olsner/ghc,vTurbine/ghc,sgillespie/ghc,mettekou/ghc,vikraman/ghc,shlevy/ghc,snoyberg/ghc,sgillespie/ghc,tjakway/ghcjvm,ezyang/ghc,ezyang/ghc,vikraman/ghc,sgillespie/ghc,vTurbine/ghc,tjakway/ghcjvm,sgillespie/ghc,olsner/ghc,tjakway/ghcjvm,sdiehl/ghc,snoyberg/ghc,mettekou/ghc,sdiehl/ghc,tjakway/ghcjvm,vTurbine/ghc,vTurbine/ghc,sgillespie/ghc,snoyberg/ghc,ezyang/ghc,shlevy/ghc,tjakway/ghcjvm,olsner/ghc,mettekou/ghc,mettekou/ghc,vikraman/ghc,shlevy/ghc,shlevy/ghc,sgillespie/ghc,mettekou/ghc,olsner/ghc,vTurbine/ghc,olsner/ghc,vTurbine/ghc,olsner/ghc,tjakway/ghcjvm,vikraman/ghc,snoyberg/ghc,mettekou/ghc,snoyberg/ghc,sdiehl/ghc,snoyberg/ghc,vikraman/ghc,snoyberg/ghc,vTurbine/ghc,vikraman/ghc,ezyang/ghc,shlevy/ghc,tjakway/ghcjvm,vikraman/ghc,sdiehl/ghc,olsner/ghc,mettekou/ghc,ezyang/ghc,sgillespie/ghc,shlevy/ghc,sdiehl/ghc,sdiehl/ghc,ezyang/ghc,ezyang/ghc,sdiehl/ghc