crypto: hash - Removed vestigial ahash fields

The base field in ahash_tfm appears to have been cut-n-pasted from
ablkcipher.  It isn't needed here at all.  Similarly, the info field
in ahash_request also appears to have originated from its cipher
counter-part and is vestigial.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

crypto/ahash.c

@@ -76,7 +76,6 @@ static int crypto_init_ahash_ops(struct crypto_tfm *tfm, u32 type, u32 mask)
 	crt->final  = alg->final;
 	crt->digest = alg->digest;
 	crt->setkey = ahash_setkey;
-	crt->base   = __crypto_ahash_cast(tfm);
 	crt->digestsize = alg->digestsize;
 
 	return 0;