crypto: skcipher - remove crypto_has_ablkcipher()

crypto_has_ablkcipher() has no users, and it does the same thing as
crypto_has_skcipher() anyway.  So remove it.  This also removes the last
user of crypto_skcipher_type() and crypto_skcipher_mask(), so remove
those too.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Documentation/crypto/api-skcipher.rst

@@ -41,7 +41,7 @@ Asynchronous Block Cipher API - Deprecated
    :doc: Asynchronous Block Cipher API
 
 .. kernel-doc:: include/linux/crypto.h
-   :functions: crypto_free_ablkcipher crypto_has_ablkcipher crypto_ablkcipher_ivsize crypto_ablkcipher_blocksize crypto_ablkcipher_setkey crypto_ablkcipher_reqtfm crypto_ablkcipher_encrypt crypto_ablkcipher_decrypt
+   :functions: crypto_free_ablkcipher crypto_ablkcipher_ivsize crypto_ablkcipher_blocksize crypto_ablkcipher_setkey crypto_ablkcipher_reqtfm crypto_ablkcipher_encrypt crypto_ablkcipher_decrypt
 
 Asynchronous Cipher Request Handle - Deprecated
 -----------------------------------------------

include/linux/crypto.h

@@ -900,20 +900,6 @@ static inline struct crypto_ablkcipher *__crypto_ablkcipher_cast(
 	return (struct crypto_ablkcipher *)tfm;
 }
 
-static inline u32 crypto_skcipher_type(u32 type)
-{
-	type &= ~CRYPTO_ALG_TYPE_MASK;
-	type |= CRYPTO_ALG_TYPE_BLKCIPHER;
-	return type;
-}
-
-static inline u32 crypto_skcipher_mask(u32 mask)
-{
-	mask &= ~CRYPTO_ALG_TYPE_MASK;
-	mask |= CRYPTO_ALG_TYPE_BLKCIPHER_MASK;
-	return mask;
-}
-
 /**
  * DOC: Asynchronous Block Cipher API
  *
@@ -959,23 +945,6 @@ static inline void crypto_free_ablkcipher(struct crypto_ablkcipher *tfm)
 	crypto_free_tfm(crypto_ablkcipher_tfm(tfm));
 }
 
-/**
- * crypto_has_ablkcipher() - Search for the availability of an ablkcipher.
- * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
- *	      ablkcipher
- * @type: specifies the type of the cipher
- * @mask: specifies the mask for the cipher
- *
- * Return: true when the ablkcipher is known to the kernel crypto API; false
- *	   otherwise
- */
-static inline int crypto_has_ablkcipher(const char *alg_name, u32 type,
-					u32 mask)
-{
-	return crypto_has_alg(alg_name, crypto_skcipher_type(type),
-			      crypto_skcipher_mask(mask));
-}
-
 static inline struct ablkcipher_tfm *crypto_ablkcipher_crt(
 	struct crypto_ablkcipher *tfm)
 {