Revert Buffer cache changes and setup additional macros.

src/video_core/engines/engine_interface.h

@@ -18,6 +18,7 @@ public:
     virtual void CallMultiMethod(u32 method, const u32* base_start, u32 amount,
                                  u32 methods_pending) = 0;
 
+    bool current_dirty{};
     GPUVAddr current_dma_segment;
 };