perfcounters: remove duplicate definition of LOCAL_PERF_VECTOR

Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/include/asm/irq_vectors.h

@@ -111,11 +111,6 @@
  */
 #define LOCAL_PERF_VECTOR		0xee
 
-/*
- * Performance monitoring interrupt vector:
- */
-#define LOCAL_PERF_VECTOR	0xee
-
 /*
  * First APIC vector available to drivers: (vectors 0x30-0xee) we
  * start at 0x31(0x41) to spread out vectors evenly between priority