kill the obsolete thread_group_cputime_free() helper

Kill the empty thread_group_cputime_free() helper.  It was needed to free
the per-cpu data which we no longer have.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: Roland McGrath <roland@redhat.com>
Cc: Veaceslav Falico <vfalico@redhat.com>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 1 deletions

diff --git a/kernel/fork.c b/kernel/fork.c
index e08e3012cd6b..58f8611b1ac6 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -167,7 +167,6 @@ EXPORT_SYMBOL(free_task);
 
 static inline void free_signal_struct(struct signal_struct *sig)
 {
-        thread_group_cputime_free(sig);
         kmem_cache_free(signal_cachep, sig);
 }