Vlv2TbltDevicePkg: Remove ResetSystem declaration

Use MdeModulePkg declaration of ResetSystem function, comment the one
in platform source code.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Zailiang Sun <zailiang.sun@intel.com>
Cc: David Wei <david.wei@intel.com>
Cc: Yi Qian <yi.qian@intel.com>
Reviewed-by: Yi Qian <yi.qian@intel.com>

Vlv2TbltDevicePkg/PlatformPei/Platform.c

@@ -18,7 +18,6 @@ Module Name:
 #include "Platform.h"
 #include <Library/PciCf8Lib.h>
 #include "PlatformBaseAddresses.h"
-#include "PchAccess.h"
 #include "PchAccess.h"
 #include <Guid/PlatformInfo.h>
 #include "PchCommonDefinitions.h"

Vlv2TbltDevicePkg/PlatformPei/Platform.h

@@ -47,16 +47,18 @@ UpdateBootMode (
 #endif
 
 /**
+  This function reset the entire platform, including all processor and devices, and
+  reboots the system.
   
   Declaration of this function goes to MdeModulePkg/Include/Library/ResetSystemLib.h
 
   @param  PeiServices General purpose services available to every PEIM.
 
-  @retval EFI_SUCCESS if it completed successfully.
-**/
-EFI_STATUS
-EFIAPI
-ResetSystem (
+  @retval EFI_SUCCESS if it completed successfully.
+**/
+// EFI_STATUS
+// EFIAPI
+// ResetSystem (
   // IN CONST EFI_PEI_SERVICES          **PeiServices
   // );