crypto: nx - remove stale comment referring to the blkcipher walk API

These drivers do not use either the deprecated blkcipher or the current
skcipher walk API, so this comment must refer to a previous state of the
driver that no longer exists. So drop the comments.

Signed-off-by: Ard Biesheuvel <[e-mail]>
Signed-off-by: Herbert Xu <[e-mail]>

drivers/crypto/nx/nx-aes-ccm.c

···
 	return ccm_nx_decrypt(req, req->iv, req->assoclen);
 }
 
-/* tell the block cipher walk routines that this is a stream cipher by
- * setting cra_blocksize to 1. Even using blkcipher_walk_virt_block
- * during encrypt/decrypt doesn't solve this problem, because it calls
- * blkcipher_walk_done under the covers, which doesn't use walk->blocksize,
- * but instead uses this tfm->blocksize. */
 struct aead_alg nx_ccm_aes_alg = {
 	.base = {
 		.cra_name        = "ccm(aes)",

drivers/crypto/nx/nx-aes-gcm.c

···
 	return gcm_aes_nx_crypt(req, 0, req->assoclen - 8);
 }
 
-/* tell the block cipher walk routines that this is a stream cipher by
- * setting cra_blocksize to 1. Even using blkcipher_walk_virt_block
- * during encrypt/decrypt doesn't solve this problem, because it calls
- * blkcipher_walk_done under the covers, which doesn't use walk->blocksize,
- * but instead uses this tfm->blocksize. */
 struct aead_alg nx_gcm_aes_alg = {
 	.base = {
 		.cra_name        = "gcm(aes)",