remove an unused data member found by  Coverity
remove an unused data member found by  Coverity


git-svn-id: acec3fd5b7ea1eb9e79d6329d318e8118ee2e14f@33876 27541ba8-7e3a-0410-8455-c3a389f83636

strykejern/TTreeReader,dfunke/root,thomaskeck/root,pspe/root,omazapa/root,thomaskeck/root,root-mirror/root,gbitzes/root,kirbyherm/root-r-tools,jrtomps/root,veprbl/root,satyarth934/root,sbinet/cxx-root,zzxuanyuan/root-compressor-dummy,vukasinmilosevic/root,lgiommi/root,omazapa/root-old,tc3t/qoot,buuck/root,alexschlueter/cern-root,buuck/root,root-mirror/root,pspe/root,evgeny-boger/root,abhinavmoudgil95/root,sbinet/cxx-root,lgiommi/root,sawenzel/root,zzxuanyuan/root-compressor-dummy,esakellari/my_root_for_test,cxx-hep/root-cern,zzxuanyuan/root,smarinac/root,thomaskeck/root,georgtroska/root,bbockelm/root,0x0all/ROOT,lgiommi/root,abhinavmoudgil95/root,simonpf/root,georgtroska/root,BerserkerTroll/root,esakellari/root,Y--/root,gbitzes/root,arch1tect0r/root,abhinavmoudgil95/root,mattkretz/root,krafczyk/root,dfunke/root,gganis/root,Duraznos/root,sawenzel/root,davidlt/root,CristinaCristescu/root,gbitzes/root,sbinet/cxx-root,cxx-hep/root-cern,davidlt/root,jrtomps/root,Duraznos/root,buuck/root,omazapa/root-old,ffurano/root5,agarciamontoro/root,Duraznos/root,esakellari/my_root_for_test,omazapa/root-old,mattkretz/root,bbockelm/root,Duraznos/root,karies/root,mkret2/root,perovic/root,mhuwiler/rootauto,abhinavmoudgil95/root,zzxuanyuan/root,evgeny-boger/root,evgeny-boger/root,omazapa/root,beniz/root,Y--/root,abhinavmoudgil95/root,nilqed/root,jrtomps/root,Duraznos/root,abhinavmoudgil95/root,sawenzel/root,evgeny-boger/root,strykejern/TTreeReader,buuck/root,vukasinmilosevic/root,mhuwiler/rootauto,CristinaCristescu/root,0x0all/ROOT,Y--/root,esakellari/my_root_for_test,mkret2/root,gbitzes/root,mattkretz/root,abhinavmoudgil95/root,root-mirror/root,simonpf/root,alexschlueter/cern-root,pspe/root,mhuwiler/rootauto,sawenzel/root,veprbl/root,Y--/root,thomaskeck/root,strykejern/TTreeReader,alexschlueter/cern-root,omazapa/root,CristinaCristescu/root,dfunke/root,esakellari/root,bbockelm/root,sirinath/root,gganis/root,arch1tect0r/root,gganis/root,mkret2/root,agarciamontoro/root,mkret2/root,krafczyk/root,georgtroska/root,satyarth934/root,bbockelm/root,simonpf/root,gbitzes/root,dfunke/root,Dr15Jones/root,omazapa/root-old,beniz/root,omazapa/root,karies/root,davidlt/root,krafczyk/root,dfunke/root,omazapa/root,gganis/root,nilqed/root,simonpf/root,vukasinmilosevic/root,beniz/root,perovic/root,dfunke/root,Dr15Jones/root,thomaskeck/root,karies/root,smarinac/root,nilqed/root,krafczyk/root,agarciamontoro/root,satyarth934/root,satyarth934/root,satyarth934/root,CristinaCristescu/root,vukasinmilosevic/root,dfunke/root,arch1tect0r/root,thomaskeck/root,mkret2/root,perovic/root,esakellari/my_root_for_test,sirinath/root,davidlt/root,karies/root,tc3t/qoot,gganis/root,zzxuanyuan/root-compressor-dummy,nilqed/root,gbitzes/root,lgiommi/root,sirinath/root,dfunke/root,gbitzes/root,kirbyherm/root-r-tools,buuck/root,sbinet/cxx-root,sirinath/root,strykejern/TTreeReader,mhuwiler/rootauto,jrtomps/root,nilqed/root,olifre/root,Dr15Jones/root,mkret2/root,sbinet/cxx-root,omazapa/root-old,nilqed/root,veprbl/root,tc3t/qoot,sawenzel/root,tc3t/qoot,smarinac/root,ffurano/root5,sirinath/root,georgtroska/root,olifre/root,esakellari/root,jrtomps/root,karies/root,zzxuanyuan/root,BerserkerTroll/root,mattkretz/root,jrtomps/root,BerserkerTroll/root,veprbl/root,zzxuanyuan/root,esakellari/my_root_for_test,arch1tect0r/root,veprbl/root,thomaskeck/root,evgeny-boger/root,satyarth934/root,sirinath/root,0x0all/ROOT,cxx-hep/root-cern,BerserkerTroll/root,pspe/root,veprbl/root,gganis/root,pspe/root,zzxuanyuan/root,simonpf/root,georgtroska/root,0x0all/ROOT,mattkretz/root,zzxuanyuan/root,karies/root,smarinac/root,gganis/root,nilqed/root,kirbyherm/root-r-tools,ffurano/root5,Duraznos/root,mkret2/root,esakellari/root,zzxuanyuan/root,kirbyherm/root-r-tools,tc3t/qoot,perovic/root,davidlt/root,simonpf/root,alexschlueter/cern-root,strykejern/TTreeReader,Duraznos/root,nilqed/root,davidlt/root,karies/root,BerserkerTroll/root,zzxuanyuan/root-compressor-dummy,esakellari/my_root_for_test,satyarth934/root,bbockelm/root,pspe/root,karies/root,zzxuanyuan/root-compressor-dummy,gbitzes/root,zzxuanyuan/root,Duraznos/root,CristinaCristescu/root,arch1tect0r/root,perovic/root,zzxuanyuan/root-compressor-dummy,krafczyk/root,arch1tect0r/root,zzxuanyuan/root,BerserkerTroll/root,buuck/root,davidlt/root,BerserkerTroll/root,sawenzel/root,jrtomps/root,omazapa/root-old,agarciamontoro/root,omazapa/root,root-mirror/root,root-mirror/root,omazapa/root-old,simonpf/root,agarciamontoro/root,cxx-hep/root-cern,simonpf/root,arch1tect0r/root,davidlt/root,dfunke/root,sawenzel/root,mhuwiler/rootauto,omazapa/root,CristinaCristescu/root,bbockelm/root,jrtomps/root,sawenzel/root,root-mirror/root,sbinet/cxx-root,gbitzes/root,lgiommi/root,evgeny-boger/root,davidlt/root,tc3t/qoot,buuck/root,esakellari/my_root_for_test,strykejern/TTreeReader,olifre/root,Y--/root,mattkretz/root,Dr15Jones/root,evgeny-boger/root,omazapa/root,cxx-hep/root-cern,beniz/root,gganis/root,smarinac/root,omazapa/root,ffurano/root5,gganis/root,gbitzes/root,BerserkerTroll/root,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