[fix] Do not attempt to fix path app setting at upgrade

scripts/upgrade

@@ -17,12 +17,9 @@ dbuser=$app
 # Retrieve app settings
 domain=$(ynh_app_setting_get $app domain)
 path=$(ynh_app_setting_get $app path)
+path=${path%/}
 dbpass=$(ynh_app_setting_get $app mysqlpwd)
 
-# Check - and fix as needed - path setting
-[[ "${path: -1}" = / ]] \
-  && path=${path%/} && ynh_app_setting_set $app path $path
-
 # Check destination directory
 DESTDIR="/var/www/$app"
 [[ ! -d $DESTDIR ]] && die \