Ported r2720 from ZXing
Ported r2720 from ZXing

Original commit message: "Comment out unused encoder code (per Frank
Yellin)"

rowliny/ZXingObjC,benjohnde/ZXingObjC,ufs-slizhik/ZXingObjC,TheLevelUp/ZXingObjC,rkpant/ZXingObjC,elegion/ios-pods-ZXingObjC,davidjackman/ZXingObjC,xuxubin/ZXingObjC,jebai0521/ZXingObjC,tejesh-alimilli/ZXingObjC,trsathya/ZXingObjC,wuxsoft/ZXingObjC,tejesh-alimilli/ZXingObjC,jianwoo/ZXingObjC,trsathya/ZXingObjC,rowliny/ZXingObjC,fuzhiqiang1989/ZXingObjC,adan016/ZXingObjC,sdhzwm/ZXingObjC,Kalvar/ZXingObjC,adan016/ZXingObjC,zilaiyedaren/ZXingObjC,TheLevelUp/ZXingObjC,fanwenkai/ZXingObjC,Stocard/ZXingObjC,RockyAo/ZXingObjC,JeremyPacker/ZXingObjC,wuxsoft/ZXingObjC,benjohnde/ZXingObjC,JeremyPacker/ZXingObjC,RockyAo/ZXingObjC,Stocard/ZXingObjC,YotrolZ/ZXingObjC,Kalvar/ZXingObjC,peacemoon/ZXingObjC,zeffon/ZXingObjC,zilaiyedaren/ZXingObjC,sdhzwm/ZXingObjC,davidjackman/ZXingObjC,jianwoo/ZXingObjC,Kevin775263419/ZXingObjC,cortices/ZXingObjC,elegion/ios-pods-ZXingObjC,rkpant/ZXingObjC,xuxubin/ZXingObjC,ufs-slizhik/ZXingObjC,zeffon/ZXingObjC,fuzhiqiang1989/ZXingObjC,YotrolZ/ZXingObjC,fanwenkai/ZXingObjC,jebai0521/ZXingObjC,Kevin775263419/ZXingObjC,cortices/ZXingObjC,peacemoon/ZXingObjC