crypto: inside-secure - remove useless check

When sending an ahash request, the code checks for the extra variable
not to be 0. This check is useless as the extra variable can't be 0 at
this point (it is checked on the line just before).

This patch does not modify the driver behaviour in any way.
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/inside-secure/safexcel_hash.c

@@ -230,7 +230,6 @@ static int safexcel_ahash_send_req(struct crypto_async_request *async, int ring,
 		if (!extra)
 			extra = crypto_ahash_blocksize(ahash);
 
-		if (extra) {
 		sg_pcopy_to_buffer(areq->src, sg_nents(areq->src),
 				   req->cache_next, extra,
 				   areq->nbytes - extra);
@@ -244,7 +243,6 @@ static int safexcel_ahash_send_req(struct crypto_async_request *async, int ring,
 			return 0;
 		}
 	}
-	}
 
 	/* Add a command descriptor for the cached data, if any */
 	if (cache_len) {