SVN commit 1018751 by fzenith:

plasma_applet_qualculate was not dead, it was moved to kdereview
Good thing we're using Subversion :-)
CCMAIL: aacid

 A             plasma_applet_qalculate.po   trunk/l10n-kde4/it/messages/playground-base/plasma_applet_qalculate.po#1018465