x86, apic: remove stale references to APIC_DEFINITION

Impact: cleanup

APIC_DEFINITION was a hack from the x86 subarch times, it has no
meaning anymore - remove it.
Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/kernel/bigsmp_32.c

@@ -2,7 +2,6 @@
  * APIC driver for "bigsmp" XAPIC machines with more than 8 virtual CPUs.
  * Drives the local APIC in "clustered mode".
  */
-#define APIC_DEFINITION 1
 #include <linux/threads.h>
 #include <linux/cpumask.h>
 #include <asm/mpspec.h>

arch/x86/kernel/es7000_32.c

@@ -383,7 +383,6 @@ void __init es7000_enable_apic_mode(void)
 /*
  * APIC driver for the Unisys ES7000 chipset.
  */
-#define APIC_DEFINITION 1
 #include <linux/threads.h>
 #include <linux/cpumask.h>
 #include <asm/mpspec.h>

arch/x86/kernel/numaq_32.c

@@ -297,7 +297,6 @@ int __init get_memcfg_numaq(void)
 /*
  * APIC driver for the IBM NUMAQ chipset.
  */
-#define APIC_DEFINITION 1
 #include <linux/threads.h>
 #include <linux/cpumask.h>
 #include <asm/mpspec.h>

arch/x86/kernel/summit_32.c

@@ -34,7 +34,6 @@
 /*
  * APIC driver for the IBM "Summit" chipset.
  */
-#define APIC_DEFINITION 1
 #include <linux/threads.h>
 #include <linux/cpumask.h>
 #include <asm/mpspec.h>