Remove myself from the docker module maintainers

Apologies, but I no longer use this module day-to-day myself, and I don't have the bandwidth right now to effectively triage changes in any kind of timely fashion.

lib/ansible/modules/cloud/docker/docker.py

@@ -396,7 +396,6 @@ author:
     - "Cove Schneider (@cove)"
     - "Joshua Conner (@joshuaconner)"
     - "Pavel Antonov (@softzilla)"
-    - "Ash Wilson (@smashwilson)"
     - "Thomas Steinbach (@ThomasSteinbach)"
     - "Philippe Jandot (@zfil)"
     - "Daan Oosterveld (@dusdanig)"