1 First go to your facebook timeline, and click on Activity Log just under your timeline cover.
3 Scroll down the side bar until you see Friends then click on it.
4 As you can see, all your friendship requests will appear, next to each friend request you've sent there must be a button named Hidden from timeline click on it and select Cancel Friend Request.
5 Finally and to confirm the process just click on Yes to the small window that will show up.
That's all, I hope you find this article helpful for you.