backends/cryptodev-vhost-user: Fix local_error leaks

Do not propagate error to the upper, directly output the error
to avoid leaks.

Fixes: 2fda101 ("virtio-crypto: Support asynchronous mode")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2714
Signed-off-by: Gabriel Barrantes <[email protected]>
Reviewed-by: zhenwei pi <[email protected]>
Message-Id: <DM8PR13MB50781054A4FDACE6F4FB6469B30F2@DM8PR13MB5078.namprd13.prod.outlook.com>
Signed-off-by: Philippe Mathieu-Daudé <[email protected]>

Author: Gabriel Barrantes

backends/cryptodev-vhost-user.c

@@ -281,8 +281,7 @@ static int cryptodev_vhost_user_create_session(
         break;
 
     default:
-        error_setg(&local_error, "Unsupported opcode :%" PRIu32 "",
-                   sess_info->op_code);
+        error_report("Unsupported opcode :%" PRIu32 "", sess_info->op_code);
         return -VIRTIO_CRYPTO_NOTSUPP;
     }