x86: disable __do_IRQ support

Impact: disable unused code

x86 is fully converted to flow handlers. No need to keep the
deprecated __do_IRQ() support active.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index bc2fbad..3a330a4 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -165,6 +165,9 @@
 	bool
 	default y
 
+config GENERIC_HARDIRQS_NO__DO_IRQ
+       def_bool y
+
 config GENERIC_IRQ_PROBE
 	bool
 	default y