From bdc7119f1bdd0632d42f435941dc290216a436e7 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Fri, 24 May 2013 10:55:38 +0900
Subject: [PATCH] cgroup: make cgroup_is_removed() static

cgroup_is_removed() no longer has external users and it shouldn't grow
any - controllers should deal with cgroup_subsys_state on/offline
state instead of cgroup removal state.  Make it static.

While at it, make it return bool.

Signed-off-by: Tejun Heo <tj@kernel.org>
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