x86: remove all definitions with fastcall

fastcall is always defined to be empty, remove it from arch/x86

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
index b49616b..cef054b 100644
--- a/arch/x86/kernel/irq_32.c
+++ b/arch/x86/kernel/irq_32.c
@@ -66,7 +66,7 @@
  * SMP cross-CPU interrupts have their own specific
  * handlers).
  */
-fastcall unsigned int do_IRQ(struct pt_regs *regs)
+unsigned int do_IRQ(struct pt_regs *regs)
 {	
 	struct pt_regs *old_regs;
 	/* high bit used in ret_from_ code */