Allow any identity to be deleted (until one left)
Summary: Allow any identity profiles to be removed, until there is only one identity remaining. Beforehand, the first identity could never be removed.
Reviewers: Konversation, psn
Reviewed By: Konversation, psn
Subscribers: Konversation
Tags: Konversation
Differential Revision: https://phabricator.kde.org/D28471