KVM: remove duplicated #include

Remove duplicated #include('s) in
  arch/x86/kvm/lapic.c
Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

arch/x86/kvm/lapic.c

@@ -32,7 +32,6 @@
 #include <asm/current.h>
 #include <asm/apicdef.h>
 #include <asm/atomic.h>
-#include <asm/apicdef.h>
 #include "kvm_cache_regs.h"
 #include "irq.h"
 #include "trace.h"