Libdw: Remove special treatment for stg_stop_thread
Libdw: Remove special treatment for stg_stop_thread

This is no longer necessary since this symbol can be unwound through
with its DWARF information.

nushio3/ghc,shlevy/ghc,oldmanmike/ghc,shlevy/ghc,nushio3/ghc,tjakway/ghcjvm,shlevy/ghc,oldmanmike/ghc,sdiehl/ghc,da-x/ghc,vikraman/ghc,olsner/ghc,elieux/ghc,GaloisInc/halvm-ghc,mettekou/ghc,ezyang/ghc,vikraman/ghc,oldmanmike/ghc,ezyang/ghc,vTurbine/ghc,sgillespie/ghc,gridaphobe/ghc,mcschroeder/ghc,vTurbine/ghc,vikraman/ghc,elieux/ghc,elieux/ghc,oldmanmike/ghc,nushio3/ghc,oldmanmike/ghc,olsner/ghc,AlexanderPankiv/ghc,mcschroeder/ghc,elieux/ghc,vikraman/ghc,gridaphobe/ghc,snoyberg/ghc,mcschroeder/ghc,snoyberg/ghc,mcschroeder/ghc,sgillespie/ghc,sgillespie/ghc,olsner/ghc,ezyang/ghc,GaloisInc/halvm-ghc,sdiehl/ghc,nushio3/ghc,sgillespie/ghc,tjakway/ghcjvm,ezyang/ghc,mcschroeder/ghc,tjakway/ghcjvm,mettekou/ghc,vikraman/ghc,da-x/ghc,tjakway/ghcjvm,sdiehl/ghc,AlexanderPankiv/ghc,elieux/ghc,gridaphobe/ghc,sgillespie/ghc,olsner/ghc,tjakway/ghcjvm,mettekou/ghc,vikraman/ghc,sdiehl/ghc,nushio3/ghc,vTurbine/ghc,snoyberg/ghc,GaloisInc/halvm-ghc,elieux/ghc,AlexanderPankiv/ghc,tjakway/ghcjvm,oldmanmike/ghc,vTurbine/ghc,AlexanderPankiv/ghc,vikraman/ghc,vTurbine/ghc,GaloisInc/halvm-ghc,da-x/ghc,mettekou/ghc,sgillespie/ghc,snoyberg/ghc,GaloisInc/halvm-ghc,GaloisInc/halvm-ghc,da-x/ghc,sdiehl/ghc,mettekou/ghc,snoyberg/ghc,shlevy/ghc,gridaphobe/ghc,olsner/ghc,da-x/ghc,GaloisInc/halvm-ghc,nushio3/ghc,snoyberg/ghc,oldmanmike/ghc,ezyang/ghc,ezyang/ghc,AlexanderPankiv/ghc,AlexanderPankiv/ghc,snoyberg/ghc,mettekou/ghc,mcschroeder/ghc,gridaphobe/ghc,gridaphobe/ghc,shlevy/ghc,gridaphobe/ghc,sdiehl/ghc,mettekou/ghc,shlevy/ghc,nushio3/ghc,sgillespie/ghc,ezyang/ghc,mcschroeder/ghc,tjakway/ghcjvm,elieux/ghc,da-x/ghc,shlevy/ghc,da-x/ghc,olsner/ghc,vTurbine/ghc,AlexanderPankiv/ghc,vTurbine/ghc,olsner/ghc,sdiehl/ghc