Platforms/HiKeyFastboot: remove unused variable

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
diff --git a/Platforms/Hisilicon/HiKey/HiKeyFastbootDxe/HiKeyFastbootDxe.c b/Platforms/Hisilicon/HiKey/HiKeyFastbootDxe/HiKeyFastbootDxe.c
index 7121a4e..cfa5124 100644
--- a/Platforms/Hisilicon/HiKey/HiKeyFastbootDxe/HiKeyFastbootDxe.c
+++ b/Platforms/Hisilicon/HiKey/HiKeyFastbootDxe/HiKeyFastbootDxe.c
@@ -270,12 +270,10 @@
   )

 {

   EFI_STATUS               Status;

-  UINTN                    BlockSize;

   EFI_DISK_IO_PROTOCOL    *DiskIo;

   UINT32                   MediaId;

 

   MediaId = mFlashBlockIo->Media->MediaId;

-  BlockSize = mFlashBlockIo->Media->BlockSize;

   Status = gBS->OpenProtocol (

                   mFlashHandle,

                   &gEfiDiskIoProtocolGuid,