From b9f3cecaba592d4e98cd155c91b1414323ed51e8 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Fri, 29 Nov 2013 10:42:58 -0500
Subject: [PATCH] cgroup: remove cftype->release()

Now that pidlist files don't use cftype->release(), it doesn't have
any user left.  Remove it.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>
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Reading git-format-patch failed