Revert "msm: kgsl: flush device workqueue before stop"

This reverts commit f8e5cd2af7b43bc92e297fdb549d5607df2fee97.

Change-Id: Ie2902a33ffca298a27d9ef811e7e57a6d3630c5f
Signed-off-by: Suman Tatiraju <sumant@codeaurora.org>
diff --git a/drivers/gpu/msm/z180.c b/drivers/gpu/msm/z180.c
index 718fac9..cb3da90 100644
--- a/drivers/gpu/msm/z180.c
+++ b/drivers/gpu/msm/z180.c
@@ -584,6 +584,8 @@
 	device->ftbl->irqctrl(device, 0);
 	z180_idle(device, KGSL_TIMEOUT_DEFAULT);
 
+	del_timer_sync(&device->idle_timer);
+
 	kgsl_mmu_stop(device);
 
 	/* Disable the clocks before the power rail. */