kmemcheck: includecheck fix for shadow.c

fix the following 'make includecheck' warning:

arch/x86/mm/kmemcheck/shadow.c: linux/module.h is included more than once.

---
 arch/x86/mm/kmemcheck/shadow.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

index e773b6b..3f66b82 100644
@@ -1,7 +1,6 @@
 #include <linux/kmemcheck.h>
 #include <linux/module.h>
 #include <linux/mm.h>
-#include <linux/module.h>
 
 #include <asm/page.h>
 #include <asm/pgtable.h>

1.6.0.6

I think this should have been sent to the kmemcheck maintainers (I maintain kmemleak - pretty confusing names).

Catalin