crypto: atmel-aes: Remove unused variable ret

Remove unused variable ret to avoid unwanted compilation warning:
drivers/crypto/atmel-aes.c: In function ‘atmel_aes_authenc_crypt’:
drivers/crypto/atmel-aes.c:2248:21: warning: unused variable ‘ret’ [-Wunused-variable]
  2248 |                 int ret;
       |
Fixes: 4ade590 ("crypto: atmel-aes: Add fallback for unsupported ESP header length ")

Signed-off-by: Andrei Simion <andrei.simion@microchip.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>

Author: Andrei Simion

drivers/crypto/atmel-aes.c

@@ -2245,7 +2245,6 @@ static int atmel_aes_authenc_crypt(struct aead_request *req,
 	 */
 	if ((req->assoclen != 16) && limitation) {
 		struct aead_request *subreq = aead_request_ctx(req);
-		int ret;
 
 		aead_request_set_tfm(subreq, actx->fallback);
 		aead_request_set_callback(subreq, req->base.flags,