Remove unused function
Remove unused function

Closes #878

janeasystems/redis,alpha8/redis,laurencee/redis,shanegxxiao/redis,jacklee0810/redis,erwin00776/redis-2.8-optimize,upsoft/redis,adamweixuan/redis,laurencee/redis,miminus/redis,kolonse/redis,kolonse/redis,kts12345/redis,upsoft/redis,StartTheShift/redis-shift,upsoft/redis,LittlePeng/redis,hanmichael/redis,LittlePeng/redis,enginekit/redis,quangnguyen90/redis,adamweixuan/redis,ScottKaiGu/redis,sidsen/redis,sidsen/redis,sidsen/redis,enginekit/redis,liqiang199105/redis,upsoft/redis,jaambee/redis,laurencee/redis,liqiang199105/redis,alpha8/redis,sidsen/redis,hanmichael/redis,sidsen/redis,nandhanurrevanth/redis,miminus/redis,ScottKaiGu/redis,ideaar/redis,Jonavin/redis,jaambee/redis,Cybermaxs/redis,quangnguyen90/redis,quangnguyen90/redis,liqiang199105/redis,ScottKaiGu/redis,shanegxxiao/redis,shanegxxiao/redis,adamweixuan/redis,jqk6/redis,ideaar/redis,StartTheShift/redis-shift,erwin00776/redis-2.8-optimize,alpha8/redis,kts12345/redis,LittlePeng/redis,kts12345/redis,Cybermaxs/redis,shanegxxiao/redis,kolonse/redis,fanxu/redis,Jonavin/redis,damy/redis,miminus/redis,StartTheShift/redis-shift,damy/redis,enginekit/redis,laurencee/redis,jqk6/redis,enginekit/redis,janeasystems/redis,janeasystems/redis,quangnguyen90/redis,alpha8/redis,damy/redis,laurencee/redis,Cybermaxs/redis,nandhanurrevanth/redis,jacklee0810/redis,alpha8/redis,jaambee/redis,erwin00776/redis-2.8-optimize,liqiang199105/redis,shanegxxiao/redis,jaambee/redis,fanxu/redis,Jonavin/redis,adamweixuan/redis,adamweixuan/redis,sidsen/redis,hanmichael/redis,jacklee0810/redis,jqk6/redis,ScottKaiGu/redis,kts12345/redis,jqk6/redis,nandhanurrevanth/redis,miminus/redis,Jonavin/redis,janeasystems/redis,quangnguyen90/redis,miminus/redis,hanmichael/redis,damy/redis,liqiang199105/redis,kts12345/redis,enginekit/redis,erwin00776/redis-2.8-optimize,kolonse/redis,ScottKaiGu/redis,ideaar/redis,Jonavin/redis,hanmichael/redis,jacklee0810/redis,kolonse/redis,jaambee/redis,janeasystems/redis,ideaar/redis,Cybermaxs/redis,jacklee0810/redis,ideaar/redis,nandhanurrevanth/redis,fanxu/redis,nandhanurrevanth/redis,fanxu/redis,upsoft/redis,jqk6/redis,damy/redis,Cybermaxs/redis