crypto: shash - remove crypto_shash_alignmask

crypto_shash_alignmask() no longer has any callers, and it always
returns 0 now that the shash algorithm type no longer supports nonzero
alignmasks.  Therefore, remove it.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

include/crypto/hash.h

@@ -798,12 +798,6 @@ static inline const char *crypto_shash_driver_name(struct crypto_shash *tfm)
 	return crypto_tfm_alg_driver_name(crypto_shash_tfm(tfm));
 }
 
-static inline unsigned int crypto_shash_alignmask(
-	struct crypto_shash *tfm)
-{
-	return crypto_tfm_alg_alignmask(crypto_shash_tfm(tfm));
-}
-
 /**
  * crypto_shash_blocksize() - obtain block size for cipher
  * @tfm: cipher handle