crypto: skcipher - Get rid of crypto_grab_skcipher2()

Since commit 3a01d0ee2b99 ("crypto: skcipher - Remove top-level
givcipher interface"), crypto_grab_skcipher2() and
crypto_grab_skcipher() are equivalent.  So switch callers of
crypto_grab_skcipher2() to crypto_grab_skcipher() and remove it.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/crypto/gcm.c b/crypto/gcm.c
index 39c261d..5f11b80 100644
--- a/crypto/gcm.c
+++ b/crypto/gcm.c
@@ -663,9 +663,9 @@
 		goto err_drop_ghash;
 
 	crypto_set_skcipher_spawn(&ctx->ctr, aead_crypto_instance(inst));
-	err = crypto_grab_skcipher2(&ctx->ctr, ctr_name, 0,
-				    crypto_requires_sync(algt->type,
-							 algt->mask));
+	err = crypto_grab_skcipher(&ctx->ctr, ctr_name, 0,
+				   crypto_requires_sync(algt->type,
+							algt->mask));
 	if (err)
 		goto err_drop_ghash;