[PATCH] Platform/RPi4/Library/PlatformBootManagerLib: remove dead logo code

["Andrei Warkentin" <awarkentin@vmware.com>]

Back in RaspberryPiPkg (before upstream Pi 3) support, I wrote
some extra code in PlatformBootManagerLib and BootGraphicsResourceTableDxe
to clear out the logo/BGRT, so that Windows would always show its own
logo instead of the platform logo. It kind of made sense back in the day,
when they only portion of Windows that "ran" on Pi 3 was the part that
could display a logo before BSODing...

The code in PlatformBootManagerLib (that this patch is removing) only
worked with the matching BootGraphicsResourceTableDxe change*** that
never got upstreamed. Moreover, Windows (for logo/cert) requires BGRT
so these kinds of shennigans aren't worth the effort.

So, remove the dead code.

***https://github.com/andreiw/RaspberryPiPkg/blob/master/edk2Patches/0003-BootGraphicsResourceTableDxe-properly-handle-SetBoot.patch

Signed-off-by: Andrei Warkentin <awarkentin@vmware.com>
---
 .../PlatformBootManagerLib/PlatformBm.c        | 18 ------------------
 .../PlatformBootManagerLib.inf                 |  1 -
 2 files changed, 19 deletions(-)

diff --git a/Platform/RaspberryPi/Library/PlatformBootManagerLib/PlatformBm.c b/Platform/RaspberryPi/Library/PlatformBootManagerLib/PlatformBm.c
index 12c3829d28..996ba8f399 100644
--- a/Platform/RaspberryPi/Library/PlatformBootManagerLib/PlatformBm.c
+++ b/Platform/RaspberryPi/Library/PlatformBootManagerLib/PlatformBm.c
@@ -25,7 +25,6 @@
 #include <Protocol/LoadedImage.h>
 #include <Guid/EventGroup.h>
 #include <Guid/TtyTerm.h>
-#include <Protocol/BootLogo.h>
 
 #include "PlatformBm.h"
 
@@ -691,7 +690,6 @@ PlatformBootManagerWaitCallback (
   EFI_GRAPHICS_OUTPUT_BLT_PIXEL_UNION White;
   UINT16                              Timeout;
   EFI_STATUS                          Status;
-  EFI_BOOT_LOGO_PROTOCOL *BootLogo;
 
   Timeout = PcdGet16 (PcdPlatformBootTimeOut);
 
@@ -711,22 +709,6 @@ PlatformBootManagerWaitCallback (
   } else {
     Print (L".");
   }
-
-  if (TimeoutRemain == 0) {
-    BootLogo = NULL;
-
-    //
-    // Clear out the boot logo so that Windows displays its own logo
-    // instead of ours.
-    //
-    Status = gBS->LocateProtocol (&gEfiBootLogoProtocolGuid, NULL, (VOID**)&BootLogo);
-    if (!EFI_ERROR (Status) && (BootLogo != NULL)) {
-      Status = BootLogo->SetBootLogo (BootLogo, NULL, 0, 0, 0, 0);
-      ASSERT_EFI_ERROR (Status);
-    };
-
-    gST->ConOut->ClearScreen (gST->ConOut);
-  }
 }
 
 /**
diff --git a/Platform/RaspberryPi/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf b/Platform/RaspberryPi/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf
index 79b75d667f..e40b3f096a 100644
--- a/Platform/RaspberryPi/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf
+++ b/Platform/RaspberryPi/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf
@@ -81,4 +81,3 @@
   gEfiSimpleFileSystemProtocolGuid
   gEsrtManagementProtocolGuid
   gEfiUsb2HcProtocolGuid
-  gEfiBootLogoProtocolGuid
-- 
2.17.1