remove seeks (unmaintained)

- last update is from 2014 https://github.com/beniz/seeks/branches
 - The website domain seeks-project.info is parked
Ref https://github.com/Kickball/awesome-selfhosted/issues/1013

README.md

@@ -1164,7 +1164,6 @@ See also _[Monitoring](#monitoring)_
 
 - [Ambar](https://ambar.cloud) - Document Search Engine (OCR, Store & Search). ([Demo](https://app.ambar.cloud/), [Source Code](https://github.com/RD17/ambar)) `MIT` `Nodejs/Python`
 - [Gigablast](http://www.gigablast.com/) - open source search engine. ([Source Code](https://github.com/gigablast/open-source-search-engine)) `Apache-2.0` `C++`
-- [Seeks](https://beniz.github.io/seeks/) - Web search proxy and collaborative distributed tool for websearch. ([Source Code](https://github.com/beniz/seeks)) `AGPL-3.0` `C++`
 - [Searx](https://asciimoo.github.io/searx/) - Privacy-respecting, hackable metasearch engine. ([Demo](https://searx.me/), [Source Code](https://github.com/asciimoo/searx)) `AGPL-3.0` `Python`
 - [Yacy](http://yacy.net/en/index.html) - Peer based, decentralized search engine server. ([Demo](http://search.yacy.net/), [Source Code](https://github.com/yacy/yacy_search_server)) `GPL-2.0` `Java`