I still use that feature every day. I have a smart keyword setup so that I just type:
maps from LAX to San Francisco
into the URL bar and get taken straight to a Google Maps page showing me that route [1]. Forgive me if I've misunderstood you and you're talking about something else, but this feature still exists. AFAIK I'm using the latest version of Google maps.[1] https://www.google.co.uk/maps/preview?q=from+lax+to+san+fran...