MdeModulePkg: Use IsZeroGuid API for zero GUID checking

Instead of comparing a GUID with gZeroGuid via the CompareGuid API, the
commit uses the IsZeroGuid API to check if the given GUID is a zero GUID.

Cc: Feng Tian <feng.tian@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Feng Tian <feng.tian@Intel.com>

MdeModulePkg/Library/UefiBootManagerLib/BmDriverHealth.c

@@ -1,7 +1,7 @@
 /** @file
   Library functions which relates with driver health.
 
-Copyright (c) 2011 - 2015, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2011 - 2016, Intel Corporation. All rights reserved.<BR>
 (C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>
 (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
 This program and the accompanying materials
@@ -446,7 +446,7 @@ BmRepairAllControllers (
   //
   // Configure PcdDriverHealthConfigureForm to ZeroGuid to disable driver health check.
   //
-  if (CompareGuid (PcdGetPtr (PcdDriverHealthConfigureForm), &gZeroGuid)) {
+  if (IsZeroGuid (PcdGetPtr (PcdDriverHealthConfigureForm))) {
     return;
   }
 

MdeModulePkg/Library/UefiBootManagerLib/InternalBm.h

@@ -45,7 +45,6 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #include <Protocol/VariableLock.h>
 #include <Protocol/RamDisk.h>
 
-#include <Guid/ZeroGuid.h>
 #include <Guid/MemoryTypeInformation.h>
 #include <Guid/FileInfo.h>
 #include <Guid/GlobalVariable.h>

MdeModulePkg/Library/UefiBootManagerLib/UefiBootManagerLib.inf

@@ -87,7 +87,6 @@
   gEfiDiskInfoAhciInterfaceGuid                 ## SOMETIMES_CONSUMES ## GUID
   gEfiDiskInfoIdeInterfaceGuid                  ## SOMETIMES_CONSUMES ## GUID
   gEfiDiskInfoScsiInterfaceGuid                 ## SOMETIMES_CONSUMES ## GUID
-  gZeroGuid                                     ## CONSUMES ## GUID
 
 [Protocols]
   gEfiPciRootBridgeIoProtocolGuid               ## CONSUMES