Remove remaining direct dokku calls

subcommands/import

@@ -11,14 +11,7 @@ mysql-import-cmd() {
 
   [[ -z "$SERVICE" ]] && dokku_log_fail "Please specify a name for the service"
   verify_service_name "$SERVICE"
-  SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
-  SERVICE_NAME="$(get_service_name "$SERVICE")"
-  PASSWORD=$(cat "$SERVICE_ROOT/PASSWORD")
-
-  if [[ -t 0 ]]; then
-    dokku_log_fail "No data provided on stdin."
-  fi
-  docker exec -i "$SERVICE_NAME" mysql --user=mysql --password="$PASSWORD" "$SERVICE"
+  service_import "$SERVICE"
 }
 
 mysql-import-cmd "$@"