Revert "Debian/Ubuntu: use non-root evcc user (evcc-io#4901)"

This reverts commit 5fef68d.

.goreleaser-nightly.yml

@@ -73,7 +73,6 @@ nfpms:
         dst: /lib/systemd/system/evcc.service
 
     scripts:
-      preinstall: ./packaging/scripts/preinstall.sh
       postinstall: ./packaging/scripts/postinstall.sh
       preremove: ./packaging/scripts/preremove.sh
       postremove: ./packaging/scripts/postremove.sh

.goreleaser.yml

@@ -76,7 +76,6 @@ nfpms:
         dst: /lib/systemd/system/evcc.service
 
     scripts:
-      preinstall: ./packaging/scripts/preinstall.sh
       postinstall: ./packaging/scripts/postinstall.sh
       preremove: ./packaging/scripts/preremove.sh
       postremove: ./packaging/scripts/postremove.sh

packaging/init/evcc.service

@@ -10,12 +10,9 @@ StartLimitIntervalSec=10
 StartLimitBurst=10
 
 [Service]
-ExecStart=/usr/bin/evcc --sqlite /var/lib/evcc/evcc.db
+ExecStart=/usr/bin/evcc
 Restart=always
 RestartSec=10
 
-User=evcc
-Group=evcc
-
 [Install]
 WantedBy=multi-user.target

packaging/scripts/postinstall.sh

@@ -4,7 +4,6 @@ set -e
 USER_CHOICE_CONFIG="/etc/evcc-userchoices.sh"
 ETC_SERVICE="/etc/systemd/system/evcc.service"
 USR_LOCAL_BIN="/usr/local/bin/evcc"
-RESTART_FLAG_FILE=/var/lib/evcc/.restartOnUpgrade
 
 # Usage: askUserKeepFile <file>
 # Return: 1 = keep, 0 = delete
@@ -89,10 +88,7 @@ if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-decon
 	# Restart only if it was already started
 	if [ -d /run/systemd/system ]; then
 		systemctl --system daemon-reload >/dev/null || true
-		if [ -f $RESTART_FLAG_FILE ]; then
-			deb-systemd-invoke start evcc.service >/dev/null || true
-			rm $RESTART_FLAG_FILE
-		elif [ -n "$2" ]; then
+		if [ -n "$2" ]; then
 			deb-systemd-invoke try-restart evcc.service >/dev/null || true
 		else
 			deb-systemd-invoke start evcc.service >/dev/null || true