Download application from here: https://github.com/M-Minkov/LeagueFriendsCleaner/releases/tag/Release
A League Of Legends small Application that removes all of your friends in league of legends
I took this fork from https://github.com/Sharaf-Mansour/LeagueFriendsCleaner to update it a bit, and add a .exe release (to be easier for others). Based on PoniLCU