revert x86_64-mm-add-genapic_force

From: Andrew Morton <akpm@osdl.org>

This is obsoleted by new Ingo genapic patches.

Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Andi Kleen <ak@suse.de>
Cc: "Li, Shaohua" <shaohua.li@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Andi Kleen <ak@suse.de>

---

 arch/x86_64/kernel/genapic.c |    9 +--------
 include/asm-x86_64/genapic.h |    2 +-
 2 files changed, 2 insertions(+), 9 deletions(-)

Index: linux/arch/x86_64/kernel/genapic.c
===================================================================
--- linux.orig/arch/x86_64/kernel/genapic.c
+++ linux/arch/x86_64/kernel/genapic.c
@@ -33,7 +33,7 @@ extern struct genapic apic_flat;
 extern struct genapic apic_physflat;
 
 struct genapic *genapic = &apic_flat;
-struct genapic *genapic_force;
+
 
 /*
  * Check the APIC IDs in bios_cpu_apicid and choose the APIC mode.
@@ -46,13 +46,6 @@ void __init clustered_apic_check(void)
 	u8 cluster_cnt[NUM_APIC_CLUSTERS];
 	int max_apic = 0;
 
-	/* genapic selection can be forced because of certain quirks.
-	 */
-	if (genapic_force) {
-		genapic = genapic_force;
-		goto print;
-	}
-
 #if defined(CONFIG_ACPI)
 	/*
 	 * Some x86_64 machines use physical APIC mode regardless of how many
Index: linux/include/asm-x86_64/genapic.h
===================================================================
--- linux.orig/include/asm-x86_64/genapic.h
+++ linux/include/asm-x86_64/genapic.h
@@ -30,6 +30,6 @@ struct genapic {
 };
 
 
-extern struct genapic *genapic, *genapic_force, apic_flat;
+extern struct genapic *genapic;
 
 #endif