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>

crypto/ahash.c

@@ -515,11 +515,6 @@ static void crypto_ahash_free_instance(struct crypto_instance *inst)
 {
 	struct ahash_instance *ahash = ahash_instance(inst);
 
-	if (!ahash->free) {
-		inst->tmpl->free(inst);
-		return;
-	}
-
 	ahash->free(ahash);
 }