Where is "Google Product Search" plugin?

Hello,

Actually we have our store in Nop v3.3.
We are planning update to the latest Nop 3.6.

In our actual store we have this plugin:
  Google Product Search
  Versión: 1.50
  PromotionFeed.Froogle

But we can't find it in the Plugins list available for download in https://www.nopcommerce.com/extensions-and-themes.aspx

What happen with that plugin?

Thanks

Sorry!! This plugin is already in the Nop v3.6 source code!!