crypto: tegra - remove redundant error check on ret

Currently there is an unnecessary error check on ret without a proceeding
assignment to ret that needs checking. The check is redundant and can be
removed.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Acked-by: Akhil R <akhilrajeev@nvidia.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/tegra/tegra-se-aes.c

@@ -1180,8 +1180,6 @@ static int tegra_ccm_do_one_req(struct crypto_engine *engine, void *areq)
 			goto out;
 	} else {
 		rctx->cryptlen = req->cryptlen - ctx->authsize;
-		if (ret)
-			goto out;
 
 		/* CTR operation */
 		ret = tegra_ccm_do_ctr(ctx, rctx);