Revert "timer: process softirq during dumping timer info"

This reverts commit ed7e33747d.

Assertion is triggered:
(XEN) Assertion '!in_irq() && local_irq_is_enabled()' failed at softirq.c:57

Signed-off-by: Wei Liu <wei.liu2@citrix.com>

xen/common/timer.c

@@ -530,7 +530,6 @@ static void dump_timerq(unsigned char key)
     {
         ts = &per_cpu(timers, i);
 
-        process_pending_softirqs();
         printk("CPU%02d:\n", i);
         spin_lock_irqsave(&ts->lock, flags);
         for ( j = 1; j <= GET_HEAP_SIZE(ts->heap); j++ )