net: socket: drop unneeded likely() call around IS_ERR()

IS_ERR() already calls unlikely(), so this extra likely() call
around the !IS_ERR() is not needed.
Signed-off-by: Enrico Weigelt <info@metux.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/socket.c

@@ -435,7 +435,7 @@ static int sock_map_fd(struct socket *sock, int flags)
 	}
 
 	newfile = sock_alloc_file(sock, flags, NULL);
-	if (likely(!IS_ERR(newfile))) {
+	if (!IS_ERR(newfile)) {
 		fd_install(fd, newfile);
 		return fd;
 	}