feat: use individual automats rather than robokop

[colleenXu]

Related to biothings/biothings_explorer#865

@tokebe In case we want to switch to individual automats and try this out

UPDATE:
Waiting until next week to merge or not.
Automat reports they are improving robokop early next week.

[colleenXu]

Slack pasting:

Evan Morris
Yesterday at 2:03 PM
Unfortunate, we will be deploying a new Automat version very soon which should
improve the speed of queries with large result sets
not return a 200 status for neo4j timeouts
Sending queries to specific plater instances could definitely help in certain cases in the meantime though, especially for queries involving genes and affects edges

Evan Morris
Today at 6:21 AM
I have just deployed new platers on dev that should be faster and have better error status codes when they do fail
Evan Morris
Today at 7:29 AM
We are planning to push these up to CI early next week

[colleenXu]

We ended up switching back to our previous subset of individual automat APIs in #52, which was merged.

So this branch/PR is no longer needed