staging: octeon: Remove unneeded variable

Remove unneeded variable used to store return value. Issue found by
coccicheck.
Signed-off-by: Cristiane Naves <cristianenavescardoso09@gmail.com>
Link: https://lore.kernel.org/r/20191026222453.GA14562@cristiane-Inspiron-5420Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/octeon/octeon-stubs.h

@@ -1387,9 +1387,7 @@ static inline cvmx_pko_status_t cvmx_pko_send_packet_finish(uint64_t port,
 		uint64_t queue, union cvmx_pko_command_word0 pko_command,
 		union cvmx_buf_ptr packet, cvmx_pko_lock_t use_locking)
 {
-	cvmx_pko_status_t ret = 0;
-
-	return ret;
+	return 0;
 }
 
 static inline void cvmx_wqe_set_port(struct cvmx_wqe *work, int port)