None of the telepathy-mission-control versions still in portage depend on gconf anymore - package lost that dep upon 5.5.0 release.
+ 21 Apr 2011; Pacho Ramos <pacho@gentoo.org> + telepathy-mission-control-5.6.1.ebuild, + -telepathy-mission-control-5.7.7.ebuild, + telepathy-mission-control-5.7.9.ebuild: + Drop gconf RDEPEND as it's no longer needed (bug #364281 by Rafał Mużyło). + Remove old. +