Fix install-scripts, and bundle relay list

mullvad-vpn-daemon/mullvad-vpn-daemon.post-install

@@ -1,10 +1,7 @@
 #!/usr/bin/env bash
 set -eu
 
-if which systemctl &> /dev/null && systemctl is-system-running | grep -vq offline &> /dev/null; then
-    if systemctl status mullvad-daemon &> /dev/null; then
-      systemctl enable "/usr/lib/systemd/system/mullvad-daemon.service"
-      systemctl start mullvad-daemon.service || echo "Failed to start mullvad-daemon.service"
-      systemctl enable "/usr/lib/systemd/system/mullvad-early-boot-blocking.service"
-    fi
-fi
+# Overwrite the cached relay list with the one embedded in the package.
+mkdir -p /var/cache/mullvad-vpn \
+  && cp /usr/share/mullvad-vpn/relays.json /var/cache/mullvad-vpn/relays.json \
+  || echo "failed to install /var/cache/mullvad-vpn/relays.json"