Can't remove notification about deleted uread pm

Steps to reproduce
1) Receive new private message
2) Don open it
3) Click on red cross located at left of message title

Expected behavior:
Message deleted from history and notifications

Current behavior:
Message deleted from history but not from notifications: at top right corner near mail icon and on front page "You have 1 unread message".

Ah, I can fix that. I'll have it up shortly.

EDIT: Fixed