devcg: remove broken_hierarchy tag

bd2953ebbb ("devcg: propagate local changes down the hierarchy")
implemented proper hierarchy support.  Remove the broken tag.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Aristeu Rozanski <aris@redhat.com>
diff --git a/security/device_cgroup.c b/security/device_cgroup.c
index 221967d..994aecc 100644
--- a/security/device_cgroup.c
+++ b/security/device_cgroup.c
@@ -739,15 +739,6 @@
 	.css_offline = devcgroup_offline,
 	.subsys_id = devices_subsys_id,
 	.base_cftypes = dev_cgroup_files,
-
-	/*
-	 * While devices cgroup has the rudimentary hierarchy support which
-	 * checks the parent's restriction, it doesn't properly propagates
-	 * config changes in ancestors to their descendents.  A child
-	 * should only be allowed to add more restrictions to the parent's
-	 * configuration.  Fix it and remove the following.
-	 */
-	.broken_hierarchy = true,
 };
 
 /**