Revert "Clarify at compile-time that cling cannot handle the new GCC ABI yet."
Revert "Clarify at compile-time that cling cannot handle the new GCC ABI yet."

Cling should now be able to do that.

zzxuanyuan/root-compressor-dummy,bbockelm/root,olifre/root,zzxuanyuan/root,davidlt/root,sawenzel/root,mhuwiler/rootauto,gganis/root,agarciamontoro/root,CristinaCristescu/root,zzxuanyuan/root-compressor-dummy,beniz/root,zzxuanyuan/root,veprbl/root,buuck/root,gganis/root,gbitzes/root,satyarth934/root,olifre/root,thomaskeck/root,root-mirror/root,root-mirror/root,buuck/root,satyarth934/root,zzxuanyuan/root-compressor-dummy,karies/root,buuck/root,simonpf/root,Y--/root,Y--/root,gbitzes/root,agarciamontoro/root,satyarth934/root,zzxuanyuan/root-compressor-dummy,bbockelm/root,root-mirror/root,veprbl/root,thomaskeck/root,davidlt/root,CristinaCristescu/root,thomaskeck/root,CristinaCristescu/root,mhuwiler/rootauto,zzxuanyuan/root,satyarth934/root,root-mirror/root,agarciamontoro/root,sawenzel/root,BerserkerTroll/root,zzxuanyuan/root-compressor-dummy,sawenzel/root,veprbl/root,buuck/root,simonpf/root,abhinavmoudgil95/root,veprbl/root,simonpf/root,georgtroska/root,davidlt/root,davidlt/root,beniz/root,georgtroska/root,agarciamontoro/root,sawenzel/root,agarciamontoro/root,agarciamontoro/root,georgtroska/root,lgiommi/root,georgtroska/root,veprbl/root,thomaskeck/root,BerserkerTroll/root,Y--/root,georgtroska/root,buuck/root,root-mirror/root,sawenzel/root,zzxuanyuan/root,Y--/root,gganis/root,karies/root,simonpf/root,pspe/root,CristinaCristescu/root,CristinaCristescu/root,karies/root,simonpf/root,mhuwiler/rootauto,thomaskeck/root,davidlt/root,BerserkerTroll/root,pspe/root,gbitzes/root,beniz/root,gbitzes/root,zzxuanyuan/root-compressor-dummy,beniz/root,root-mirror/root,beniz/root,beniz/root,abhinavmoudgil95/root,thomaskeck/root,thomaskeck/root,lgiommi/root,CristinaCristescu/root,olifre/root,olifre/root,olifre/root,simonpf/root,pspe/root,bbockelm/root,root-mirror/root,lgiommi/root,root-mirror/root,olifre/root,davidlt/root,bbockelm/root,buuck/root,Y--/root,bbockelm/root,simonpf/root,karies/root,bbockelm/root,BerserkerTroll/root,bbockelm/root,olifre/root,BerserkerTroll/root,davidlt/root,zzxuanyuan/root,lgiommi/root,lgiommi/root,georgtroska/root,lgiommi/root,abhinavmoudgil95/root,gganis/root,Y--/root,gganis/root,georgtroska/root,abhinavmoudgil95/root,bbockelm/root,veprbl/root,CristinaCristescu/root,BerserkerTroll/root,zzxuanyuan/root,davidlt/root,mhuwiler/rootauto,beniz/root,zzxuanyuan/root-compressor-dummy,simonpf/root,satyarth934/root,gbitzes/root,pspe/root,CristinaCristescu/root,abhinavmoudgil95/root,veprbl/root,gbitzes/root,karies/root,georgtroska/root,abhinavmoudgil95/root,karies/root,agarciamontoro/root,pspe/root,zzxuanyuan/root-compressor-dummy,mhuwiler/rootauto,gganis/root,agarciamontoro/root,gbitzes/root,thomaskeck/root,gbitzes/root,BerserkerTroll/root,beniz/root,simonpf/root,pspe/root,thomaskeck/root,sawenzel/root,satyarth934/root,buuck/root,sawenzel/root,Y--/root,CristinaCristescu/root,zzxuanyuan/root,lgiommi/root,zzxuanyuan/root,davidlt/root,satyarth934/root,bbockelm/root,veprbl/root,zzxuanyuan/root,beniz/root,zzxuanyuan/root-compressor-dummy,pspe/root,sawenzel/root,CristinaCristescu/root,pspe/root,gbitzes/root,gganis/root,mhuwiler/rootauto,root-mirror/root,georgtroska/root,karies/root,root-mirror/root,BerserkerTroll/root,abhinavmoudgil95/root,mhuwiler/rootauto,gganis/root,abhinavmoudgil95/root,karies/root,pspe/root,abhinavmoudgil95/root,buuck/root,georgtroska/root,satyarth934/root,karies/root,sawenzel/root,mhuwiler/rootauto,mhuwiler/rootauto,root-mirror/root,mhuwiler/rootauto,gbitzes/root,beniz/root,Y--/root,davidlt/root,CristinaCristescu/root,buuck/root,satyarth934/root,agarciamontoro/root,abhinavmoudgil95/root,bbockelm/root,bbockelm/root,BerserkerTroll/root,sawenzel/root,agarciamontoro/root,veprbl/root,gganis/root,karies/root,lgiommi/root,lgiommi/root,gganis/root,olifre/root,gganis/root,karies/root,simonpf/root,BerserkerTroll/root,Y--/root,veprbl/root,lgiommi/root,zzxuanyuan/root,zzxuanyuan/root-compressor-dummy,zzxuanyuan/root-compressor-dummy,olifre/root,thomaskeck/root,olifre/root,agarciamontoro/root,satyarth934/root,sawenzel/root,buuck/root,abhinavmoudgil95/root,pspe/root,davidlt/root,lgiommi/root,beniz/root,pspe/root,Y--/root,georgtroska/root,mhuwiler/rootauto,zzxuanyuan/root,satyarth934/root,veprbl/root,olifre/root,buuck/root,gbitzes/root,simonpf/root,Y--/root,zzxuanyuan/root,BerserkerTroll/root