Remove direct use of aws creds from deployed environments

app/s3_client/__init__.py

@@ -1,20 +1,14 @@
-import os
-
 import botocore
 from boto3 import Session
 from flask import current_app
 
-default_access_key = os.environ.get('AWS_ACCESS_KEY_ID')
-default_secret_key = os.environ.get('AWS_SECRET_ACCESS_KEY')
-default_region = os.environ.get('AWS_REGION')
-
 
 def get_s3_object(
     bucket_name,
     filename,
-    access_key=default_access_key,
-    secret_key=default_secret_key,
-    region=default_region,
+    access_key,
+    secret_key,
+    region,
 ):
     # To inspect contents: obj.get()['Body'].read().decode('utf-8')
     session = Session(aws_access_key_id=access_key, aws_secret_access_key=secret_key, region_name=region)