Remove placeholder sms callback comments

app/notifications/notifications_sms_callback.py

@@ -1,42 +0,0 @@
-from flask import Blueprint
-
-from app.errors import register_errors
-
-sms_callback_blueprint = Blueprint("sms_callback", __name__, url_prefix="/notifications/sms")
-register_errors(sms_callback_blueprint)
-
-# TODO SNS SMS delivery receipts delivered here
-# This file should likely be deleted, since SNS does not use callback https calls
-# Leaving for now to have an example of what jobs MMG did that we may want to replicate in the
-# eventual SNS method.
-
-# @sms_callback_blueprint.route('/mmg', methods=['POST'])
-# def process_mmg_response():
-#     client_name = 'MMG'
-#     data = json.loads(request.data)
-#     errors = validate_callback_data(data=data,
-#                                     fields=['status', 'CID'],
-#                                     client_name=client_name)
-#     if errors:
-#         raise InvalidRequest(errors, status_code=400)
-
-#     status = str(data.get('status'))
-#     detailed_status_code = str(data.get('substatus'))
-
-#     provider_reference = data.get('CID')
-
-#     process_sms_client_response.apply_async(
-#         [status, provider_reference, client_name, detailed_status_code],
-#         queue=QueueNames.SMS_CALLBACKS,
-#     )
-
-#     return jsonify(result='success'), 200
-
-
-def validate_callback_data(data, fields, client_name):
-    errors = []
-    for f in fields:
-        if not str(data.get(f, '')):
-            error = "{} callback failed: {} missing".format(client_name, f)
-            errors.append(error)
-    return errors if len(errors) > 0 else None