diff --git a/scripts/backup b/scripts/backup
index 7e77bde..4ef690a 100755
--- a/scripts/backup
+++ b/scripts/backup
@@ -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
 
@@ -30,8 +26,6 @@ app=$YNH_APP_INSTANCE_NAME
 
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 domain=$(ynh_app_setting_get --app=$app --key=domain)
-db_name=$(ynh_app_setting_get --app=$app --key=db_name)
-phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 datadir=$(ynh_app_setting_get --app=$app --key=datadir)
 
 #=================================================
diff --git a/scripts/remove b/scripts/remove
index cd668e6..0d18d6a 100755
--- a/scripts/remove
+++ b/scripts/remove
@@ -17,9 +17,6 @@ ynh_script_progression --message="Loading installation settings..." --weight=1
 app=$YNH_APP_INSTANCE_NAME
 
 domain=$(ynh_app_setting_get --app=$app --key=domain)
-port=$(ynh_app_setting_get --app=$app --key=port)
-db_name=$(ynh_app_setting_get --app=$app --key=db_name)
-db_user=$db_name
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 datadir=$(ynh_app_setting_get --app=$app --key=datadir)
 
diff --git a/scripts/restore b/scripts/restore
index 0c68f35..9218a3c 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
 
@@ -31,8 +27,6 @@ app=$YNH_APP_INSTANCE_NAME
 domain=$(ynh_app_setting_get --app=$app --key=domain)
 path_url=$(ynh_app_setting_get --app=$app --key=path)
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
-db_name=$(ynh_app_setting_get --app=$app --key=db_name)
-db_user=$db_name
 datadir=$(ynh_app_setting_get --app=$app --key=datadir)
 
 #=================================================
@@ -93,15 +87,6 @@ ynh_script_progression --message="Reinstalling dependencies..." --weight=1
 # Define and install dependencies
 ynh_install_app_dependencies $pkg_dependencies
 
-#=================================================
-# RESTORE THE MYSQL DATABASE
-#=================================================
-ynh_script_progression --message="Restoring the MySQL database..." --weight=1
-
-db_pwd=$(ynh_app_setting_get --app=$app --key=mysqlpwd)
-ynh_mysql_setup_db --db_user=$db_user --db_name=$db_name --db_pwd=$db_pwd
-ynh_mysql_connect_as --user=$db_user --password=$db_pwd --database=$db_name < ./db.sql
-
 #=================================================
 # RESTORE SYSTEMD
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index df8a613..bc00ce8 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -19,7 +19,6 @@ app=$YNH_APP_INSTANCE_NAME
 domain=$(ynh_app_setting_get --app=$app --key=domain)
 path_url=$(ynh_app_setting_get --app=$app --key=path)
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
-db_name=$(ynh_app_setting_get --app=$app --key=db_name)
 
 #=================================================
 # CHECK VERSION