diff --git a/check_process b/check_process
index 34d5d00..6fca7dd 100644
--- a/check_process
+++ b/check_process
@@ -15,7 +15,6 @@
         upgrade=1	from_commit=c8575c645eb5802cd99cf63dfede2ddba124582b
 		backup_restore=1
 		multi_instance=1
-		port_already_use=0
 		change_url=0
 ;;; Options
 Email=
diff --git a/scripts/restore b/scripts/restore
index 49c0376..d565716 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -14,10 +14,6 @@ source /usr/share/yunohost/helpers
 # MANAGE SCRIPT FAILURE
 #=================================================
 
-ynh_clean_setup () {
-	#### Remove this function if there's nothing to clean before calling the remove script.
-	true
-}
 # Exit if an error occurs during the execution of the script
 ynh_abort_if_errors