Remove unused variables
Remove unused variables

horryq/tcpcopy,sshling/tcpcopy,left2right/tcpcopy,caosiyang/tcpcopy,ycaihua/tcpcopy,liviusATnetskope/second,u20024804/tcpcopy,u20024804/tcpcopy,eliteYang/tcpcopy,caosiyang/tcpcopy,wfxiang08/tcpcopy,left2right/tcpcopy,liviusATnetskope/second,horryq/tcpcopy,ycaihua/tcpcopy,eliteYang/tcpcopy,sshling/tcpcopy,daodaoliang/tcpcopy,daodaoliang/tcpcopy,wfxiang08/tcpcopy