I cannot remove my profile picture(s) from the Outlook mail app in Windows8.

I cannot remove my profile picture(s) from the Outlook mail app in Windows8. I was able to remove them from the desktop version but there is a profile picture for both of my aliases in the Mail app. One of them is from at least five years ago, I don't even remember adding the other. How can I get rid of these? it is annoying to say the least since there is absolutely no logical explanation for them being there or a simple way to remove them. I have searched the MS Community. I am not connected to any other accounts (Twitter, FB) except for Google. I have already chosen the option to disable third party linking.