x86: don't read maxlvt before checking if APIC is mapped

A check for unmapped apic was added before reading maxlvt but the early
read of maxlvt wasn't removed.

Signed-off-by: Chuck Ebbert <cebbert@redhat.com>

Index: linux-2.6.25.noarch/arch/x86/kernel/apic_64.c
===================================================================
--- linux-2.6.25.noarch.orig/arch/x86/kernel/apic_64.c
+++ linux-2.6.25.noarch/arch/x86/kernel/apic_64.c
@@ -524,7 +524,7 @@ int setup_profiling_timer(unsigned int m
  */
 void clear_local_APIC(void)
 {
-	int maxlvt = lapic_get_maxlvt();
+	int maxlvt;
 	u32 v;

 	/* APIC hasn't been mapped yet */
--
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