includes/Stg.h: remove unused 'wcStore' inline
includes/Stg.h: remove unused 'wcStore' inline

Summary:
Commit reverts never used addition in cbd29e0a23bb8e15033edae123d6c8fbe9740c97

I think it might make sense to take advantage of TSO/RMO/PSO models
tome day. But it's highly architecture/model-dependent thus it better
be implemented in per-arch Native CodeGen.

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>

Test Plan: build-tested on UNREG-amd64

Reviewers: simonmar, austin

Reviewed By: austin

Subscribers: simonmar, ezyang, carter

Differential Revision: https://phabricator.haskell.org/D186

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