librem5: remove hack for running geoclue with gnss-share socket

This can be reverted now: https://gitlab.postmarketos.org/postmarketos/pmaports/-/blob/master/device/main/device-purism-librem5/org.freedesktop.GeoClue2.service#L3

geoclue is being configured correctly to support gnss-share when both gapps are installed on Alpine Linux: https://gitlab.alpinelinux.org/alpine/aports/-/blob/master/community/gnss-share/geoclue.conf