scsi: csiostor: remove flush_scheduled_work()

flush_scheduled_work() is not required as csio_hw_exit_workers() calls
cancel_work_sync() for hw->evtq_work.
Signed-off-by: NVarun Prakash <varun@chelsio.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/csiostor/csio_init.c

@@ -255,7 +255,6 @@ static void
 csio_hw_exit_workers(struct csio_hw *hw)
 {
 	cancel_work_sync(&hw->evtq_work);
-	flush_scheduled_work();
 }
 
 static int