MdeModulePkg/DxeCore: remove explicit EBC handling

Now that the EBC machine type is no longer classified as a
natively supported machine type on the architectures that can
support it via the EBC interpreter, the EBC specific handling
in DXE core is no longer used and can be removed.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Hao Wu <hao.a.wu@intel.com>

MdeModulePkg/Core/Dxe/DxeMain.h

@@ -36,7 +36,6 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 #include <Protocol/LoadPe32Image.h>
 #include <Protocol/Security.h>
 #include <Protocol/Security2.h>
-#include <Protocol/Ebc.h>
 #include <Protocol/Reset.h>
 #include <Protocol/Cpu.h>
 #include <Protocol/Metronome.h>
@@ -221,8 +220,6 @@ typedef struct {
   BASE_LIBRARY_JUMP_BUFFER    *JumpContext;
   /// Machine type from PE image
   UINT16                      Machine;
-  /// EBC Protocol pointer
-  EFI_EBC_PROTOCOL            *Ebc;
   /// PE/COFF Image Emulator Protocol pointer
   EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL  *PeCoffEmu;
   /// Runtime image list