sched, no_hz: Remove unused rq->last_tick_seen field

In 15934a37324f32e0fda633dc7984a671ea81cd75,
field last_tick_seen is added to struct rq.
But it is unused now.

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Guillaume Chazarain <guichaz@yahoo.fr>
LKML-Reference: <4AE6A513.6010100@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
1 file changed