Update daemon to 2026.3-beta1 and make scripts less "presumptous"

mullvad-vpn-daemon/mullvad-vpn-daemon.pre-upgrade

@@ -1,18 +1,6 @@
 #!/bin/sh
 set -eu
 
-# Stop the daemon gracefully, and set up firewall rules to prevent network
-# leaks during upgrade.
-if which systemctl >/dev/null 2>&1 && systemctl is-system-running | grep -vq offline >/dev/null 2>&1; then
-    if systemctl status mullvad-daemon >/dev/null 2>&1; then
-        mullvad-setup prepare-restart || true
-        systemctl stop mullvad-daemon.service
-        systemctl disable mullvad-daemon.service
-        systemctl disable mullvad-early-boot-blocking.service || true
-        cp /var/log/mullvad-vpn/daemon.log /var/log/mullvad-vpn/old-install-daemon.log \
-            || echo "Failed to copy old daemon log"
-    fi
-fi
-
 # Clear the cached API IP address.
+# The new daemon should contain an up-to-date address.
 rm -f /var/cache/mullvad-vpn/api-ip-address.txt