remove components related to MOU and agreement (#476)

Co-authored-by: Kenneth Kehl <@kkehl@flexion.us>

app/s3_client/s3_mou_client.py

@@ -1,22 +0,0 @@
-import botocore
-from flask import current_app
-
-from app.s3_client.s3_logo_client import get_s3_object
-
-
-def get_mou():
-    bucket = current_app.config['MOU_BUCKET_NAME']
-    filename = 'agreement.pdf'
-    attachment_filename = 'U.S. Notify data sharing and financial agreement.pdf'
-    try:
-        key = get_s3_object(bucket, filename)
-        return {
-            'path_or_file': key.get()['Body'],
-            'download_name': attachment_filename,
-            'as_attachment': True,
-        }
-    except botocore.exceptions.ClientError as exception:
-        current_app.logger.error("Unable to download s3 file {}/{}".format(
-            bucket, filename
-        ))
-        raise exception