Even though the game requires DirectX 8.1 I don't think that it uses any pixel shaders, let alone version 1.4. I think it's better to remove this info from the API table.
Topic on Talk:Hitman 2: Silent Assassin
Checked the game with 3D Ripper DX and the only thing it was able to catch is some vertex shader v1.1. So I think it's safe to assume that the game doesn't use pixel shaders and thus shader model should be shown as 1.1.