crypto: stm32 - Remove unused HASH_FLAGS_ERRORS

The bit HASH_FLAGS_ERRORS was never used.  Remove it.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/stm32/stm32-hash.c

@@ -95,7 +95,6 @@
 #define HASH_FLAGS_SHA1			BIT(19)
 #define HASH_FLAGS_SHA224		BIT(20)
 #define HASH_FLAGS_SHA256		BIT(21)
-#define HASH_FLAGS_ERRORS		BIT(22)
 #define HASH_FLAGS_HMAC			BIT(23)
 
 #define HASH_OP_UPDATE			1
@@ -873,7 +872,6 @@ static int stm32_hash_finish(struct ahash_request *req)
 static void stm32_hash_finish_req(struct ahash_request *req, int err)
 {
 	struct stm32_hash_request_ctx *rctx = ahash_request_ctx(req);
-	struct stm32_hash_state *state = &rctx->state;
 	struct stm32_hash_dev *hdev = rctx->hdev;
 
 	if (!err && (HASH_FLAGS_FINAL & hdev->flags)) {
@@ -884,8 +882,6 @@ static void stm32_hash_finish_req(struct ahash_request *req, int err)
 				 HASH_FLAGS_OUTPUT_READY | HASH_FLAGS_HMAC |
 				 HASH_FLAGS_HMAC_INIT | HASH_FLAGS_HMAC_FINAL |
 				 HASH_FLAGS_HMAC_KEY);
-	} else {
-		state->flags |= HASH_FLAGS_ERRORS;
 	}
 
 	pm_runtime_mark_last_busy(hdev->dev);