Remove drupal2lektor script

Development for this script will be tracked in a separate project, at
https://gitlab.torproject.org/tpo/web/drupal2lektor
2 jobs for main in 4 minutes and 55 seconds (queued for 58 seconds)
Status Name Job ID Coverage
  Test
passed pages #32733

00:04:55

 
  Deploy
passed pages:deploy

00:00:05