Update Make File

[Hopding]

The make file's comments still refer to docker, despite all of the docker stuff having been moved over to the infra project. These should be updated.

Also, these env var exports can be removed, I think, as they should be handled by whatever process runs the database:

export CASSANDRA_USERNAME=cassandra
export CASSANDRA_PASSWORD=cassandra
export CASSANDRA_URL="0.0.0.0"
export CASSANDRA_PORT=9042
export CASSANDRA_KEYSPACE=skill_directory_keyspace

[thebho]

They do need to be in the make file. The Cassandra connector reads them from your environment on start up.