flatpak: Build libgeoclue without Vala support
Vala (vapigen) is no longer included in the GNOME SDK. So disable Vala support in the bundled libgeoclue for main, as it's not needed.
Fixes #572 (closed)
Vala (vapigen) is no longer included in the GNOME SDK. So disable Vala support in the bundled libgeoclue for main, as it's not needed.
Fixes #572 (closed)