How Do I Hide Who Gave a member an infraction

[your24hourstore]

infractions are really meant to be given to users by moderator , you may want to use
User Reputation Permissions instead, I mis understood your question, infractions are meant to be seen by the person for doing something, up to you if others can also view them. try Reputation Permissions, will work better for you since you can hide that from the person who receives the rep and they show rep to all users on top or bottom of avitar, cant remember