testing/nemo-qml-plugin-devicelock: upgrade to 0.3.4 and remove systemd files
Replaces !18031 (closed)
Patch is being upstreamed: https://git.sailfishos.org/mer-core/nemo-qml-plugin-devicelock/merge_requests/57
Replaces !18031 (closed)
Patch is being upstreamed: https://git.sailfishos.org/mer-core/nemo-qml-plugin-devicelock/merge_requests/57