Update to Tensorflow 2.0

[ozcode2009]

I updated this to Tensorflow 2.5, with the Automatic Update tool from Google. I also removed the models that come with it, and increased its FPS and removed the rendering.

[fyyzkd]

这是来自QQ邮箱的假期自动回复邮件。你好，我最近正在休假中，无法亲自回复你的邮件。我将在假期结束后，尽快给你回复。

[ngkhiem97]

Thank you so much. It ran on my machine!