notify-260 remove server-side timezone handling

app/service/rest.py

@@ -2,7 +2,6 @@ import itertools
 from datetime import datetime
 
 from flask import Blueprint, current_app, jsonify, request
-from notifications_utils.timezones import convert_utc_to_local_timezone
 from sqlalchemy.exc import IntegrityError
 from sqlalchemy.orm.exc import NoResultFound
 from werkzeug.datastructures import MultiDict
@@ -500,9 +499,7 @@ def get_monthly_notification_stats(service_id):
 
     now = datetime.utcnow()
     if end_date > now:
-        todays_deltas = fetch_notification_status_for_service_for_day(
-            convert_utc_to_local_timezone(now), service_id=service_id
-        )
+        todays_deltas = fetch_notification_status_for_service_for_day(now, service_id=service_id)
         statistics.add_monthly_notification_status_stats(data, todays_deltas)
 
     return jsonify(data=data)

app/service/statistics.py

@@ -1,8 +1,6 @@
 from collections import defaultdict
 from datetime import datetime
 
-from notifications_utils.timezones import convert_utc_to_local_timezone
-
 from app.dao.date_util import get_months_for_financial_year
 from app.models import NOTIFICATION_STATUS_TYPES, NOTIFICATION_TYPES
 
@@ -98,7 +96,7 @@ def create_empty_monthly_notification_status_stats_dict(year):
     utc_month_starts = get_months_for_financial_year(year)
     # nested dicts - data[month][template type][status] = count
     return {
-        convert_utc_to_local_timezone(start).strftime('%Y-%m'): {
+        start.strftime('%Y-%m'): {
             template_type: defaultdict(int)
             for template_type in NOTIFICATION_TYPES
         }