blkcg: collapse blkcg_policy_ops into blkcg_policy

There's no reason to keep blkcg_policy_ops separate.  Collapse it into
blkcg_policy.

This patch doesn't introduce any functional change.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index 7865cc3..832b2ac 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -4165,12 +4165,11 @@
 
 #ifdef CONFIG_CFQ_GROUP_IOSCHED
 static struct blkcg_policy blkcg_policy_cfq = {
-	.ops = {
-		.pd_init_fn		= cfq_pd_init,
-		.pd_reset_stats_fn	= cfq_pd_reset_stats,
-	},
-	.pd_size = sizeof(struct cfq_group),
-	.cftypes = cfq_blkcg_files,
+	.pd_size		= sizeof(struct cfq_group),
+	.cftypes		= cfq_blkcg_files,
+
+	.pd_init_fn		= cfq_pd_init,
+	.pd_reset_stats_fn	= cfq_pd_reset_stats,
 };
 #endif