Remove redundant assignment

src/iomux_epoll.c

@@ -183,8 +183,6 @@ static int iomux_epoll_run(struct IOMux *mux_, struct timeval *timeout)
 
         //we want to deliver only one event at a time to simplify
         //application programming.
-        fd = mux->pending_events[i].data.ptr;
-        
         if (events & MUX_EV_READ && fd != NULL) { 
             assert(fd->callback != NULL);
             fd->callback(mux_, fd, MUX_EV_READ);