how to remove SimpleProjectSearchDaemon

The free Malwarebytes may take care of it...

https://www.malwarebytes.com/mac/

Or...

EtreCheck is a simple little diagnostic tool to display the important details of your system configuration and allow you to copy that information to the Clipboard. It is meant to be used with Apple Support Communities to help people help you with your Mac. It will not display any personal info.

https://www.etrecheck.com/

Pastebin is a good place to paste the whole report if you capture the URL while there…

https://pastebin.com/

Any luck yet?