Here is a link to Carthage
:
https://github.com/Carthage/Carthage
It additionally adds some changes in project files so I can simply remove extra files/folders and it will work but I can't use Carthage
in future again because of some errors.
And of course there is no concrete instruction how to do it on its official page.
In Finder, delete these files and directory from your project's root folder:
Cartfile
Cartfile.resolved
Carthage/
In Xcode, delete the framework item in the project navigator.
In Xcode > project Target > Build Phases tab (illustration), delete the carthage copy-frameworks
Run Script (if you had previously added it).
You can always download the framework you need from github and add it back in manually. (Or follow @tfrank377's answer).