Revert "Minor - Start Shadow Map - V10.5.0"

This reverts commit d6b7626446.

enginecustom/src/inc/system/shadow_map.h

@@ -1,33 +0,0 @@
-#pragma once
-#include <d3d11.h>
-
-class shadow_map
-{
-public:
-
-    shadow_map();
-    shadow_map(const shadow_map&) = delete;
-    shadow_map& operator=(const shadow_map&) = delete;
-    ~shadow_map();
-
-    bool initialize(
-        ID3D11Device* device,
-        int shadow_map_width,
-        int shadow_map_height
-        );
-
-    void set_render_target(ID3D11DeviceContext* context);
-    void clear_render_target(ID3D11DeviceContext* context, float depth);
-
-    ID3D11ShaderResourceView* get_shader_resource_view() const;
-
-    void shutdown();
-
-private:
-    ID3D11Texture2D* depth_texture_;
-    ID3D11DepthStencilView* depth_stencil_view_;
-    ID3D11ShaderResourceView* shader_resource_view_;
-    D3D11_VIEWPORT viewport_;
-
-    
-};