crypto: rockchip - delete unneeded variable initialization

Delete unneeded variable initialization
Signed-off-by: NKai Ye <yekai13@huawei.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/rockchip/rk3288_crypto_ahash.c

@@ -48,7 +48,7 @@ static void rk_ahash_reg_init(struct rk_crypto_info *dev)
 {
 	struct ahash_request *req = ahash_request_cast(dev->async_req);
 	struct rk_ahash_rctx *rctx = ahash_request_ctx(req);
-	int reg_status = 0;
+	int reg_status;
 
 	reg_status = CRYPTO_READ(dev, RK_CRYPTO_CTRL) |
 		     RK_CRYPTO_HASH_FLUSH | _SBF(0xffff, 16);