arclint: ReST doesn't need ArcanistMergeConflictLinter
arclint: ReST doesn't need ArcanistMergeConflictLinter

The section heading syntax trips up this linter. Fixes #10979.

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