crypto: algapi - remove crypto_template::{alloc,free}()

Now that all templates provide a ->create() method which creates an
instance, installs a strongly-typed ->free() method directly to it, and
registers it, the older ->alloc() and ->free() methods in
'struct crypto_template' are no longer used.  Remove them.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

include/crypto/algapi.h

@@ -63,8 +63,6 @@ struct crypto_template {
 	struct hlist_head instances;
 	struct module *module;
 
-	struct crypto_instance *(*alloc)(struct rtattr **tb);
-	void (*free)(struct crypto_instance *inst);
 	int (*create)(struct crypto_template *tmpl, struct rtattr **tb);
 
 	char name[CRYPTO_MAX_ALG_NAME];