Remove useless feature: capability files
Remove useless feature: capability files

capability files were used as an alternative to rootmaps to
instruct the SEAL plugin manger about what library to load in
presence of what name.
The present architecture of ROOT entirely superseded this old
set of features.

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