[IA64] Delete duplicate SN2 definition of cpu_logical_id for UP build

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

include/asm-ia64/sn/sn_cpuid.h

@@ -82,7 +82,6 @@
  */
 
 #ifndef CONFIG_SMP
-#define cpu_logical_id(cpu)			0
 #define cpu_physical_id(cpuid)			((ia64_getreg(_IA64_REG_CR_LID) >> 16) & 0xffff)
 #endif