Need Evolution to `forget passwords'

In previous versions of Evolution there was a menu option under File called Forget Passwords which allowed passwords recorded in Evolution to be `forgotten’. The version I’m now using (see below) doesn’t seem to provide that option anywhere.

Is it still possible to do this? Chooka

OpenSuse 13.2 (Harlequin)
KDE 4.14.4
Evolution 3.12.9

The passwords in evolution are usually handled by the GNOME wallet, not evo itself. There is an app called seahorse which will let you manage passwords.