travis is upset about old docs

[harrisonpim]

travis doesn't seem to like the code block in an old release note for the reporting utils. I've commented out the check_api_docs job for the time being.

from the build logs:

/home/travis/build/wellcometrust/aws_utils/docs/changes.rst:25: WARNING: Error in "code-block" directive:
maximum 1 argument(s) allowed, 9 supplied.
.. code-block:: python
    from wellcome_aws_utils.reporting_utils import process_messages
    from transform import transform
    def main(event, _, s3_client=None, es_client=None, index=None, doc_type=None):
        process_messages(event, transform, s3_client, es_client, index, doc_type)
looking for now-outdated files... none found
pickling environment... done
checking consistency... /home/travis/build/wellcometrust/aws_utils/docs/api_src.rst: WARNING: document isn't included in any toctree
done