Remove Redundant virtual (#6064)

The `override` keyword only applies to virtual functions. Specifying `virtual` again is useless.

Co-authored-by: Krishty <krishty@krishty.com>
Co-authored-by: Kim Kulling <kimkulling@users.noreply.github.com>

code/PostProcessing/EmbedTexturesProcess.h

@@ -74,7 +74,7 @@ public:
     void SetupProperties(const Importer* pImp) override;
 
     /// Overwritten, @see BaseProcess
-    virtual void Execute(aiScene* pScene) override;
+    void Execute(aiScene* pScene) override;
 
 private:
     // Try several ways to attempt to resolve the image path