Pull x86 apic updates from Ingo Molnar:
 "Two small cleanups"

* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/apic: Fix a comment in init_apic_mappings()
  x86/apic: Remove the SET_APIC_ID(x) macro