CE-2177: Stop using John Sparger's face in stories

Remove John Sparger's face in stories.

requested review from @christinajenks, @domonkosgulyas, and @imretoth

assigned to @alexandermadsen

My reaction to this MR:

code

visual

approved this merge request

(Love those avatars btw! Would love to see this bundled with our own stuff, but I know MSW doesn't support this so I may dig more into it when I investigate user impersonation)

mentioned in commit 7f890baf

merged