Listen Features
Answers to your deatiled questions

How can I remove a search from shortcuts?

You need to display all your authorized searches through the search button for removing the previous searches in the first place.

If the search is in your favorite list, the star next to the search button will become bold. By doing this, you also need to see this search on the list, which is on the right to the open window  under the title of Shortcuts. You can remove this search by clicking on the cross button (X) on the list or the star button.