DomainContextHandler: Remove unused megeBack method.
DomainContextHandler: Remove unused megeBack method.

cheral/orange3,cheral/orange3,cheral/orange3,qPCR4vir/orange3,qPCR4vir/orange3,qPCR4vir/orange3,qPCR4vir/orange3,cheral/orange3,cheral/orange3,qPCR4vir/orange3,cheral/orange3,qPCR4vir/orange3