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/io_apic_32.c b/arch/x86/kernel/io_apic_32.c
index 75bf8dc..76f11c3 100644
--- a/arch/x86/kernel/io_apic_32.c
+++ b/arch/x86/kernel/io_apic_32.c
@@ -725,7 +725,7 @@
 #endif /* CONFIG_SMP */
 
 #ifndef CONFIG_SMP
-void fastcall send_IPI_self(int vector)
+void send_IPI_self(int vector)
 {
 	unsigned int cfg;