Revert "HAWQ-40. Refact hawq standby init. Updated GUC name."
Revert "HAWQ-40. Refact hawq standby init. Updated GUC name."

This reverts commit 2561ab74d9bcbe45c33d148d18ba0a7204cb80a4.

lavjain/incubator-hawq,lavjain/incubator-hawq,cwelton/incubator-hawq,jianlirong/incubator-hawq,lavjain/incubator-hawq,stanlyxiang/incubator-hawq,lavjain/incubator-hawq,jianlirong/incubator-hawq,stanlyxiang/incubator-hawq,cwelton/incubator-hawq,outofmem0ry/incubator-hawq,wengyanqing/incubator-hawq,huor/incubator-hawq,jianlirong/incubator-hawq,stanlyxiang/incubator-hawq,huor/incubator-hawq,wengyanqing/incubator-hawq,outofmem0ry/incubator-hawq,outofmem0ry/incubator-hawq,lavjain/incubator-hawq,wengyanqing/incubator-hawq,wengyanqing/incubator-hawq,huor/incubator-hawq,wengyanqing/incubator-hawq,stanlyxiang/incubator-hawq,outofmem0ry/incubator-hawq,huor/incubator-hawq,outofmem0ry/incubator-hawq,outofmem0ry/incubator-hawq,jianlirong/incubator-hawq,lavjain/incubator-hawq,wengyanqing/incubator-hawq,cwelton/incubator-hawq,huor/incubator-hawq,jianlirong/incubator-hawq,huor/incubator-hawq,outofmem0ry/incubator-hawq,jianlirong/incubator-hawq,stanlyxiang/incubator-hawq,jianlirong/incubator-hawq,cwelton/incubator-hawq,lavjain/incubator-hawq,huor/incubator-hawq,cwelton/incubator-hawq,outofmem0ry/incubator-hawq,wengyanqing/incubator-hawq,jianlirong/incubator-hawq,lavjain/incubator-hawq,stanlyxiang/incubator-hawq,cwelton/incubator-hawq,stanlyxiang/incubator-hawq,cwelton/incubator-hawq,wengyanqing/incubator-hawq