x86/irq: Remove a redundant #ifdef directive

The call to irq_ctx_init() is wrapped in #ifdef CONFIG_X86_32.

The declaration of irq_ctx_init in irq.h provides already a stub inline for
the X86_32=n case.

Remove the redundant #ifdef in the code.

[ tglx: Massaged changelog ]

Signed-off-by: Dou Liyang <douly.fnst@cn.fujitsu.com>
Link: http://lkml.kernel.org/r/1491811500-30307-1-git-send-email-douly.fnst@cn.fujitsu.com


Signed-off-by: Thomas Gleixner <tglx@linutronix.de>