Merge pull request #18501 from touilleMan/clean-variant-_data-RefPtr

Remove unused Variant._data.RefPtr

core/variant.h

@@ -140,7 +140,6 @@ private:
 		::AABB *_aabb;
 		Basis *_basis;
 		Transform *_transform;
-		RefPtr *_resource;
 		void *_ptr; //generic pointer
 		uint8_t _mem[sizeof(ObjData) > (sizeof(real_t) * 4) ? sizeof(ObjData) : (sizeof(real_t) * 4)];
 	} _data;