Remove unused repack<A>() and repack<A, B>() from master
Remove unused repack<A>() and repack<A, B>() from master

This is a back port of 1187e78.

nikita-leonov/ReactiveCocoa,cogddo/ReactiveCocoa,isghe/ReactiveCocoa,KJin99/ReactiveCocoa,longv2go/ReactiveCocoa,jeelun/ReactiveCocoa,xulibao/ReactiveCocoa,nikita-leonov/ReactiveCocoa,LHDsimon/ReactiveCocoa,hbucius/ReactiveCocoa,kaylio/ReactiveCocoa,lixar/ReactiveCocoa,clg0118/ReactiveCocoa,beni55/ReactiveCocoa,jackywpy/ReactiveCocoa,AlanJN/ReactiveCocoa,pzw224/ReactiveCocoa,200895045/ReactiveCocoa,xumaolin/ReactiveCocoa,kevin-zqw/ReactiveCocoa,sujeking/ReactiveCocoa,kiurentu/ReactiveCocoa,on99/ReactiveCocoa,windgo/ReactiveCocoa,liufeigit/ReactiveCocoa,vincentiss/ReactiveCocoa,calebd/ReactiveCocoa,hbucius/ReactiveCocoa,stupidfive/ReactiveCocoa,JackLian/ReactiveCocoa,Juraldinio/ReactiveCocoa,BrooksWon/ReactiveCocoa,tonyli508/ReactiveCocoa,natestedman/ReactiveCocoa,KuPai32G/ReactiveCocoa,loupman/ReactiveCocoa,andersio/ReactiveCocoa,eyu1988/ReactiveCocoa,sugar2010/ReactiveCocoa,jam891/ReactiveCocoa,pzw224/ReactiveCocoa,tonyarnold/ReactiveCocoa,dachaoisme/ReactiveCocoa,j364960953/ReactiveCocoa,yonekawa/ReactiveCocoa,yaoxiaoyong/ReactiveCocoa,sandyway/ReactiveCocoa,sugar2010/ReactiveCocoa,JohnJin007/ReactiveCocoa,dskatz22/ReactiveCocoa,llb1119/test,bensonday/ReactiveCocoa,chao95957/ReactiveCocoa,cnbin/ReactiveCocoa,chao95957/ReactiveCocoa,qq644531343/ReactiveCocoa,FelixYin66/ReactiveCocoa,CCOOOOLL/ReactiveCocoa,xiaobing2007/ReactiveCocoa,tonyli508/ReactiveCocoa,ohwutup/ReactiveCocoa,walkingsmarts/ReactiveCocoa,mtxs007/ReactiveCocoa,FelixYin66/ReactiveCocoa,tiger8888/ReactiveCocoa,add715/ReactiveCocoa,ReactiveCocoa/ReactiveSwift,jeelun/ReactiveCocoa,Pingco/ReactiveCocoa,AlanJN/ReactiveCocoa,zhaoguohui/ReactiveCocoa,richeterre/ReactiveCocoa,GuitarPlayer-Ma/ReactiveCocoa,kiurentu/ReactiveCocoa,zhenlove/ReactiveCocoa,chao95957/ReactiveCocoa,richeterre/ReactiveCocoa,dskatz22/ReactiveCocoa,xiaoliyang/ReactiveCocoa,ztchena/ReactiveCocoa,cogddo/ReactiveCocoa,add715/ReactiveCocoa,AndyZhaoHe/ReactiveCocoa,wangqi211/ReactiveCocoa,howandhao/ReactiveCocoa,DongDongDongDong/ReactiveCocoa,ReactiveCocoa/ReactiveSwift,ddc391565320/ReactiveCocoa,huiping192/ReactiveCocoa,tonyli508/ReactiveCocoa,buildo/ReactiveCocoa,smilypeda/ReactiveCocoa,rpowelll/ReactiveCocoa,yytong/ReactiveCocoa,OnTheWay1988/ReactiveCocoa,icepy/ReactiveCocoa,Eveian/ReactiveCocoa,victorlin/ReactiveCocoa,clg0118/ReactiveCocoa,eyu1988/ReactiveCocoa,jackywpy/ReactiveCocoa,gengjf/ReactiveCocoa,isghe/ReactiveCocoa,DreamHill/ReactiveCocoa,ceekayel/ReactiveCocoa,towik/ReactiveCocoa,CCOOOOLL/ReactiveCocoa,SanChain/ReactiveCocoa,loupman/ReactiveCocoa,juliangrosshauser/ReactiveCocoa,luerhouhou/ReactiveCocoa,xulibao/ReactiveCocoa,kevin-zqw/ReactiveCocoa,tonyarnold/ReactiveCocoa,clg0118/ReactiveCocoa,kaylio/ReactiveCocoa,SuPair/ReactiveCocoa,Eveian/ReactiveCocoa,CQXfly/ReactiveCocoa,vincentiss/ReactiveCocoa,eyu1988/ReactiveCocoa,fhchina/ReactiveCocoa,bensonday/ReactiveCocoa,smilypeda/ReactiveCocoa,sdhzwm/ReactiveCocoa,JackLian/ReactiveCocoa,yoichitgy/ReactiveCocoa,victorlin/ReactiveCocoa,monkeydbobo/ReactiveCocoa,leelili/ReactiveCocoa,hilllinux/ReactiveCocoa,ReactiveCocoa/ReactiveSwift,ohwutup/ReactiveCocoa,lixar/ReactiveCocoa,llb1119/test,j364960953/ReactiveCocoa,yaoxiaoyong/ReactiveCocoa,andersio/ReactiveCocoa,KuPai32G/ReactiveCocoa,Liquidsoul/ReactiveCocoa,LHDsimon/ReactiveCocoa,yoichitgy/ReactiveCocoa,monkeydbobo/ReactiveCocoa,KJin99/ReactiveCocoa,towik/ReactiveCocoa,howandhao/ReactiveCocoa,DreamHill/ReactiveCocoa,LHDsimon/ReactiveCocoa,RuiAAPeres/ReactiveCocoa,takeshineshiro/ReactiveCocoa,natestedman/ReactiveCocoa,wangqi211/ReactiveCocoa,andersio/ReactiveCocoa,smilypeda/ReactiveCocoa,wpstarnice/ReactiveCocoa,taylormoonxu/ReactiveCocoa,huiping192/ReactiveCocoa,AndyZhaoHe/ReactiveCocoa,cnbin/ReactiveCocoa,alvinvarghese/ReactiveCocoa,leelili/ReactiveCocoa,Liquidsoul/ReactiveCocoa,sujeking/ReactiveCocoa,sugar2010/ReactiveCocoa,dz1111/ReactiveCocoa,juliangrosshauser/ReactiveCocoa,Eveian/ReactiveCocoa,xulibao/ReactiveCocoa,zhenlove/ReactiveCocoa,zzqiltw/ReactiveCocoa,fanghao085/ReactiveCocoa,JohnJin007/ReactiveCocoa,buildo/ReactiveCocoa,shuxiashusheng/ReactiveCocoa,huiping192/ReactiveCocoa,monkeydbobo/ReactiveCocoa,jeelun/ReactiveCocoa,j364960953/ReactiveCocoa,xiaoliyang/ReactiveCocoa,mattpetters/ReactiveCocoa,ioshger0125/ReactiveCocoa,ioshger0125/ReactiveCocoa,yonekawa/ReactiveCocoa,CCOOOOLL/ReactiveCocoa,yytong/ReactiveCocoa,towik/ReactiveCocoa,cstars135/ReactiveCocoa,SanChain/ReactiveCocoa,ShawnLeee/ReactiveCocoa,calebd/ReactiveCocoa,leichunfeng/ReactiveCocoa,cnbin/ReactiveCocoa,Ethan89/ReactiveCocoa,BrooksWon/ReactiveCocoa,emodeqidao/ReactiveCocoa,qq644531343/ReactiveCocoa,Farteen/ReactiveCocoa,juliangrosshauser/ReactiveCocoa,zhaoguohui/ReactiveCocoa,mxxiv/ReactiveCocoa,hbucius/ReactiveCocoa,jam891/ReactiveCocoa,sdhzwm/ReactiveCocoa,paulyoung/ReactiveCocoa,200895045/ReactiveCocoa,add715/ReactiveCocoa,sandyway/ReactiveCocoa,huiping192/ReactiveCocoa,yizzuide/ReactiveCocoa,longv2go/ReactiveCocoa,fhchina/ReactiveCocoa,ikesyo/ReactiveCocoa,SuPair/ReactiveCocoa,gengjf/ReactiveCocoa,Farteen/ReactiveCocoa,natestedman/ReactiveCocoa,bensonday/ReactiveCocoa,mxxiv/ReactiveCocoa,taylormoonxu/ReactiveCocoa,Ethan89/ReactiveCocoa,isghe/ReactiveCocoa,itschaitanya/ReactiveCocoa,yaoxiaoyong/ReactiveCocoa,dz1111/ReactiveCocoa,buildo/ReactiveCocoa,stevielu/ReactiveCocoa,icepy/ReactiveCocoa,zzqiltw/ReactiveCocoa,AndyZhaoHe/ReactiveCocoa,xiaobing2007/ReactiveCocoa,DongDongDongDong/ReactiveCocoa,Ricowere/ReactiveCocoa,FelixYin66/ReactiveCocoa,itschaitanya/ReactiveCocoa,brasbug/ReactiveCocoa,Ricowere/ReactiveCocoa,ikesyo/ReactiveCocoa,yonekawa/ReactiveCocoa,shuxiashusheng/ReactiveCocoa,luerhouhou/ReactiveCocoa,wpstarnice/ReactiveCocoa,zhenlove/ReactiveCocoa,wpstarnice/ReactiveCocoa,taylormoonxu/ReactiveCocoa,rpowelll/ReactiveCocoa,stupidfive/ReactiveCocoa,goodheart/ReactiveCocoa,jrmiddle/ReactiveCocoa,brasbug/ReactiveCocoa,200895045/ReactiveCocoa,Juraldinio/ReactiveCocoa,goodheart/ReactiveCocoa,emodeqidao/ReactiveCocoa,DreamHill/ReactiveCocoa,mtxs007/ReactiveCocoa,mattpetters/ReactiveCocoa,sandyway/ReactiveCocoa,GuitarPlayer-Ma/ReactiveCocoa,ioshger0125/ReactiveCocoa,GuitarPlayer-Ma/ReactiveCocoa,qq644531343/ReactiveCocoa,richeterre/ReactiveCocoa,kaylio/ReactiveCocoa,on99/ReactiveCocoa,ceekayel/ReactiveCocoa,BrooksWon/ReactiveCocoa,beni55/ReactiveCocoa,sujeking/ReactiveCocoa,KuPai32G/ReactiveCocoa,leelili/ReactiveCocoa,ShawnLeee/ReactiveCocoa,fanghao085/ReactiveCocoa,kiurentu/ReactiveCocoa,emodeqidao/ReactiveCocoa,jam891/ReactiveCocoa,ddc391565320/ReactiveCocoa,liufeigit/ReactiveCocoa,ericzhou2008/ReactiveCocoa,ohwutup/ReactiveCocoa,takeshineshiro/ReactiveCocoa,xumaolin/ReactiveCocoa,Liquidsoul/ReactiveCocoa,DongDongDongDong/ReactiveCocoa,bscarano/ReactiveCocoa,walkingsmarts/ReactiveCocoa,bscarano/ReactiveCocoa,zhaoguohui/ReactiveCocoa,ztchena/ReactiveCocoa,Ricowere/ReactiveCocoa,cstars135/ReactiveCocoa,dskatz22/ReactiveCocoa,KJin99/ReactiveCocoa,fanghao085/ReactiveCocoa,jackywpy/ReactiveCocoa,CQXfly/ReactiveCocoa,lixar/ReactiveCocoa,JohnJin007/ReactiveCocoa,llb1119/test,RuiAAPeres/ReactiveCocoa,Farteen/ReactiveCocoa,brasbug/ReactiveCocoa,liufeigit/ReactiveCocoa,JackLian/ReactiveCocoa,dachaoisme/ReactiveCocoa,alvinvarghese/ReactiveCocoa,beni55/ReactiveCocoa,ericzhou2008/ReactiveCocoa,Ethan89/ReactiveCocoa,zxq3220122/ReactiveCocoa,jrmiddle/ReactiveCocoa,victorlin/ReactiveCocoa,calebd/ReactiveCocoa,hj3938/ReactiveCocoa,tonyarnold/ReactiveCocoa,xumaolin/ReactiveCocoa,tzongw/ReactiveCocoa,itschaitanya/ReactiveCocoa,zxq3220122/ReactiveCocoa,kevin-zqw/ReactiveCocoa,ericzhou2008/ReactiveCocoa,ztchena/ReactiveCocoa,xiaoliyang/ReactiveCocoa,Ricowere/ReactiveCocoa,longv2go/ReactiveCocoa,walkingsmarts/ReactiveCocoa,tzongw/ReactiveCocoa,luerhouhou/ReactiveCocoa,Juraldinio/ReactiveCocoa,jrmiddle/ReactiveCocoa,bscarano/ReactiveCocoa,tiger8888/ReactiveCocoa,vincentiss/ReactiveCocoa,goodheart/ReactiveCocoa,AlanJN/ReactiveCocoa,hilllinux/ReactiveCocoa,takeshineshiro/ReactiveCocoa,nikita-leonov/ReactiveCocoa,yizzuide/ReactiveCocoa,zxq3220122/ReactiveCocoa,mtxs007/ReactiveCocoa,paulyoung/ReactiveCocoa,hilllinux/ReactiveCocoa,tzongw/ReactiveCocoa,paulyoung/ReactiveCocoa,zzqiltw/ReactiveCocoa,sdhzwm/ReactiveCocoa,on99/ReactiveCocoa,tiger8888/ReactiveCocoa,cogddo/ReactiveCocoa,fhchina/ReactiveCocoa,RuiAAPeres/ReactiveCocoa,yizzuide/ReactiveCocoa,ddc391565320/ReactiveCocoa,OnTheWay1988/ReactiveCocoa,stupidfive/ReactiveCocoa,mattpetters/ReactiveCocoa,wangqi211/ReactiveCocoa,xiaobing2007/ReactiveCocoa,yoichitgy/ReactiveCocoa,pzw224/ReactiveCocoa,howandhao/ReactiveCocoa,OnTheWay1988/ReactiveCocoa,Pingco/ReactiveCocoa,SanChain/ReactiveCocoa,shuxiashusheng/ReactiveCocoa,leichunfeng/ReactiveCocoa,dachaoisme/ReactiveCocoa,alvinvarghese/ReactiveCocoa,dz1111/ReactiveCocoa,windgo/ReactiveCocoa,mxxiv/ReactiveCocoa,windgo/ReactiveCocoa,hj3938/ReactiveCocoa,cstars135/ReactiveCocoa,stevielu/ReactiveCocoa,gengjf/ReactiveCocoa,CQXfly/ReactiveCocoa,ceekayel/ReactiveCocoa,stevielu/ReactiveCocoa,ShawnLeee/ReactiveCocoa,yytong/ReactiveCocoa,leichunfeng/ReactiveCocoa,icepy/ReactiveCocoa,rpowelll/ReactiveCocoa,hj3938/ReactiveCocoa,loupman/ReactiveCocoa,SuPair/ReactiveCocoa,Pingco/ReactiveCocoa