net-wireless/geteduroam: simplify icon cache updates

Inherit `xdg` instead of manually calling `xdg_icon_cache_update`

Signed-off-by: AshyPinguin <pinguinlars1105+gentoo@gmail.com>

net-wireless/geteduroam/geteduroam-0.14.ebuild

@@ -2,7 +2,7 @@
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
-inherit go-module desktop systemd xdg-utils
+inherit go-module desktop systemd xdg
 
 DESCRIPTION="geteduroam Linux client" #TODO: replace with a better description, this is currently what upstream has.
 HOMEPAGE="https://github.com/geteduroam/linux-app https://get.eduroam.org/"
@@ -44,11 +44,3 @@ src_install() {
 		systemd_douserunit "systemd/user/${PN}/${PN}-notifs.timer"
 	fi
 }
-
-pkg_postinst() {
-	xdg_icon_cache_update
-}
-
-pkg_postrm() {
-	xdg_icon_cache_update
-}