Removed test scope from usage statement
Removed test scope from usage statement

Test Plan: - [Build](https://travis-ci.org/MediaMiser/protobuf-activemq-rpc/builds/99439518)

Reviewers: #data_services_operations, yan.shi

Reviewed By: #data_services_operations, yan.shi

Differential Revision: http://phabricator.mediamiser.internal/D3893

MediaMiser/protobuf-activemq-rpc,MediaMiser/protobuf-activemq-rpc