Revert "Minor decoder optimizations, kernel fixes, cpu backend fixes"

src/xenia/gpu/d3d12/d3d12_command_processor.h

@@ -50,9 +50,8 @@ struct MemExportRange {
 };
 class D3D12CommandProcessor final : public CommandProcessor {
  protected:
-#define OVERRIDING_BASE_CMDPROCESSOR
 #include "../pm4_command_processor_declare.h"
-#undef OVERRIDING_BASE_CMDPROCESSOR
+
  public:
   explicit D3D12CommandProcessor(D3D12GraphicsSystem* graphics_system,
                                  kernel::KernelState* kernel_state);