engine: client: don't immediately send client packet after receiveing server packet or full update

It doesn't seem to be useful for anything. Instead, it completely breaks cl_cmdrate behavior, constantly
spamming server with move commands

engine/client/cl_parse_gs.c

@@ -294,7 +294,6 @@ static int CL_ParsePacketEntitiesGS( sizebuf_t *msg, qboolean delta )
 	else
 	{
 		oldframe = NULL;
-		cl.send_reply = true;
 		cls.demowaiting = false;
 	}