With a long inactivity from upstream for years(http://gdesklets.de), gdesklets reached level of obsolescence easily replaced by Gnome Shell extensions and other variant from other desktop environment. The current maintainer of gdesklets-citation bioinfornatics  (Jonathan Mercier) agreed to retire gdesklets and its plugins from Fedora 21 and upward effective immediately.

https://admin.fedoraproject.org/pkgdb/packages/gdesklets*/

I will leave branches from F19 and F20 orphan should a new maintainer be interested.
-- 
Luya Tshimbalanga
Graphic & Web Designer
E: luya@fedoraproject.org
W: http://www.coolest-storm.net