diff --git a/scripts/psql.sh b/scripts/psql.sh
deleted file mode 100644
index f47a1a5..0000000
--- a/scripts/psql.sh
+++ /dev/null
@@ -1,147 +0,0 @@
-#=================================================
-# POSTGRES HELPERS
-#=================================================
-
-# Open a connection as a user
-#
-# example: ynh_psql_connect_as 'user' 'pass' <<< "UPDATE ...;"
-# example: ynh_psql_connect_as 'user' 'pass' < /path/to/file.sql
-#
-# usage: ynh_psql_connect_as user pwd [db]
-# | arg: user - the user name to connect as
-# | arg: pwd - the user password
-# | arg: db - the database to connect to
-ynh_psql_connect_as() {
-	user="$1"
-	pwd="$2"
-	db="$3"
-	su --command="PGUSER=\"${user}\" PGPASSWORD=\"${pwd}\" psql \"${db}\"" postgres
-}
-
-# # Execute a command as root user
-#
-# usage: ynh_psql_execute_as_root sql [db]
-# | arg: sql - the SQL command to execute
-# | arg: db - the database to connect to
-ynh_psql_execute_as_root () {
-	sql="$1"
-	su --command="psql" postgres <<< "$sql"
-}
-
-# Execute a command from a file as root user
-#
-# usage: ynh_psql_execute_file_as_root file [db]
-# | arg: file - the file containing SQL commands
-# | arg: db - the database to connect to
-ynh_psql_execute_file_as_root() {
-	file="$1"
-	db="$2"
-	su -c "psql $db" postgres < "$file"
-}
-
-# Create a database, an user and its password. Then store the password in the app's config
-#
-# After executing this helper, the password of the created database will be available in $db_pwd
-# It will also be stored as "psqlpwd" into the app settings.
-#
-# usage: ynh_psql_setup_db user name [pwd]
-# | arg: user - Owner of the database
-# | arg: name - Name of the database
-# | arg: pwd - Password of the database. If not given, a password will be generated
-ynh_psql_setup_db () {
-	db_user="$1"
-	app="$1"
-	db_name="$2"
-	new_db_pwd=$(ynh_string_random)	# Generate a random password
-	# If $3 is not given, use new_db_pwd instead for db_pwd.
-	db_pwd="${3:-$new_db_pwd}"
-	ynh_psql_create_db "$db_name" "$db_user" "$db_pwd"	# Create the database
-	ynh_app_setting_set "$app" psqlpwd "$db_pwd"	# Store the password in the app's config
-}
-
-# Create a database and grant optionnaly privilegies to a user
-#
-# usage: ynh_psql_create_db db [user [pwd]]
-# | arg: db - the database name to create
-# | arg: user - the user to grant privilegies
-# | arg: pwd  - the user password
-ynh_psql_create_db() {
-	db="$1"
-	user="$2"
-	pwd="$3"
-	ynh_psql_create_user "$user" "$pwd"
-	su --command="createdb --owner=\"${user}\" \"${db}\"" postgres
-}
-
-# Drop a database
-#
-# usage: ynh_psql_drop_db db user
-# | arg: db - the database name to drop
-# | arg: user - the user to drop
-ynh_psql_remove_db() {
-	db="$1"
-	user="$2"
-	su --command="dropdb \"${db}\"" postgres
-	ynh_psql_drop_user "${user}"
-}
-
-# Dump a database
-#
-# example: ynh_psql_dump_db 'roundcube' > ./dump.sql
-#
-# usage: ynh_psql_dump_db db
-# | arg: db - the database name to dump
-# | ret: the psqldump output
-ynh_psql_dump_db() {
-	db="$1"
-	su --command="pg_dump \"${db}\"" postgres
-}
-
-
-# Create a user
-#
-# usage: ynh_psql_create_user user pwd [host]
-# | arg: user - the user name to create
-ynh_psql_create_user() {
-	user="$1"
-	pwd="$2"
-        su --command="psql -c\"CREATE USER ${user} WITH PASSWORD '${pwd}'\"" postgres
-}
-
-# Drop a user
-#
-# usage: ynh_psql_drop_user user
-# | arg: user - the user name to drop
-ynh_psql_drop_user() {
-	user="$1"
-	su --command="dropuser \"${user}\"" postgres
-}
-
-ynh_psql_test_if_first_run() {
-	if [ -f /etc/yunohost/psql ];
-	then
-		echo "PostgreSQL is already installed, no need to create master password"
-	else
-		pgsql=$(ynh_string_random)
-		pg_hba=""
-		echo "$pgsql" >> /etc/yunohost/psql
-
-		if [ -e /etc/postgresql/9.4/ ]
-		then
-			pg_hba=/etc/postgresql/9.4/main/pg_hba.conf
-		elif [ -e /etc/postgresql/9.6/ ]
-		then
-			pg_hba=/etc/postgresql/9.6/main/pg_hba.conf
-		else
-			ynh_die "postgresql shoud be 9.4 or 9.6"
-		fi
-
-		systemctl start postgresql
-                su --command="psql -c\"ALTER user postgres WITH PASSWORD '${pgsql}'\"" postgres
-		# we can't use peer since YunoHost create users with nologin
-		sed -i '/local\s*all\s*all\s*peer/i \
-		local all all password' "$pg_hba"
-		systemctl enable postgresql
-		systemctl reload postgresql
-	fi
-}