wimax/i2400m: remove unlikely() from WARN*() condition

"unlikely(WARN_ON(x))" is excessive. WARN_ON() already uses unlikely()
internally.

Link: http://lkml.kernel.org/r/20190829165025.15750-6-efremov@linux.comSigned-off-by: Denis Efremov <efremov@linux.com>
Cc: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/net/wimax/i2400m/tx.c

@@ -654,8 +654,7 @@ void i2400m_tx_close(struct i2400m *i2400m)
 	padding = aligned_size - tx_msg_moved->size;
 	if (padding > 0) {
 		pad_buf = i2400m_tx_fifo_push(i2400m, padding, 0, 0);
-		if (unlikely(WARN_ON(pad_buf == NULL
-				     || pad_buf == TAIL_FULL))) {
+		if (WARN_ON(pad_buf == NULL || pad_buf == TAIL_FULL)) {
 			/* This should not happen -- append should verify
 			 * there is always space left at least to append
 			 * tx_block_size */