Simply go to their user profile, click on their trust page, and beside the trust you left them will be an option to delete.
Thank you very much orsana!
I was able to go to all those peoples profiles and trust them again.
Its like removing a burden off.
Here is the list of people I trusted again, after I had distrusted them when I was more of newbie than I am today.
gldcoin
Hydroponica
kelsey
B. Tazed
Mr.V
dubs
coinerd
r3wt
Forgiveness is such a great thing.