Remove the dead code, TWA_SIGNAL will never set JOBCTL_TASK_WORK at
this point.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
                return 1;
        if (!signal_pending(current))
                return 0;
-       if (current->jobctl & JOBCTL_TASK_WORK) {
-               spin_lock_irq(¤t->sighand->siglock);
-               current->jobctl &= ~JOBCTL_TASK_WORK;
-               recalc_sigpending();
-               spin_unlock_irq(¤t->sighand->siglock);
-               return 1;
-       }
+       if (test_tsk_thread_flag(current, TIF_NOTIFY_SIGNAL))
+               return -ERESTARTSYS;
        return -EINTR;
 }