Staging: hv: remove VOID typedef

The VOID typedef is now removed from the Hyper-V driver code.

Cc: Hank Janssen <hjanssen@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/hv/include/osd.h b/drivers/staging/hv/include/osd.h
index 53a52cd..c78dd62 100644
--- a/drivers/staging/hv/include/osd.h
+++ b/drivers/staging/hv/include/osd.h
@@ -131,7 +131,6 @@
 // Other types
 //
 typedef unsigned long		SIZE_T;
-typedef void				VOID;
 //typedef unsigned char		GUID[16];
 typedef unsigned char		BOOL;
 typedef unsigned char		BOOLEAN;
@@ -219,7 +218,7 @@
 extern void* MemAllocZeroed(unsigned int size);
 extern void* MemAllocAtomic(unsigned int size);
 extern void MemFree(void* buf);
-extern void MemoryFence(VOID);
+extern void MemoryFence(void);
 
 extern HANDLE TimerCreate(PFN_TIMER_CALLBACK pfnTimerCB, void* context);
 extern void TimerClose(HANDLE hTimer);