[Bug 63443] don't enable gnome-keyring support in eds

[chpe]

Public bug reported:

I think eds shouldn't be compiled with gnome-keyring support enabled, for two reasons:
0) dataloss: eds does NOT migrate existing account passwords to gnome-keyring! If the user is lucky, he'll remember his password (I didn't, but got them from ~/.gnome2-private/Evolution and could decode them)
1) evolution hangs while interacting with gnome-keyring (upstream bug http://bugzilla.gnome.org/show_bug.cgi?id=350838)

** Affects: evolution-data-server (Ubuntu)
     Importance: Undecided
         Status: Unconfirmed

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don't enable gnome-keyring support in eds
https://launchpad.net/bugs/63443