Remove everything for the performance platform

We no longer will send them any stats so therefore don't need the code
- the code to work out the nightly stats
- the performance platform client
- any configuration for the client
- any nightly tasks that kick off the sending off the stats

We will require a change in cronitor as we no longer will have this task
run meaning we need to delete the cronitor check.

tests/app/celery/test_nightly_tasks.py

@@ -1,5 +1,5 @@
 from datetime import date, datetime, timedelta
-from unittest.mock import PropertyMock, call, patch
+from unittest.mock import call
 
 import pytest
 import pytz
@@ -20,21 +20,15 @@ from app.celery.nightly_tasks import (
     remove_sms_email_csv_files,
     s3,
     save_daily_notification_processing_time,
-    send_daily_performance_platform_stats,
-    send_total_sent_notifications_to_performance_platform,
     timeout_notifications,
 )
 from app.celery.service_callback_tasks import (
     create_delivery_status_callback_data,
 )
-from app.clients.performance_platform.performance_platform_client import (
-    PerformancePlatformClient,
-)
 from app.config import QueueNames
 from app.exceptions import NotificationTechnicalFailureException
 from app.models import EMAIL_TYPE, LETTER_TYPE, SMS_TYPE, FactProcessingTime
 from tests.app.db import (
-    create_ft_notification_status,
     create_job,
     create_notification,
     create_service,
@@ -232,55 +226,6 @@ def test_timeout_notifications_sends_status_update_to_service(client, sample_tem
     mocked.assert_called_once_with([str(notification.id), encrypted_data], queue=QueueNames.CALLBACKS)
 
 
-def test_send_daily_performance_stats_calls_does_not_send_if_inactive(client, mocker):
-    send_mock = mocker.patch(
-        'app.celery.nightly_tasks.total_sent_notifications.send_total_notifications_sent_for_day_stats')  # noqa
-
-    with patch.object(
-            PerformancePlatformClient,
-            'active',
-            new_callable=PropertyMock
-    ) as mock_active:
-        mock_active.return_value = False
-        send_daily_performance_platform_stats()
-
-    assert send_mock.call_count == 0
-
-
-@freeze_time("2016-06-11 02:00:00")
-def test_send_total_sent_notifications_to_performance_platform_calls_with_correct_totals(
-        notify_db_session,
-        sample_template,
-        sample_email_template,
-        mocker
-):
-    perf_mock = mocker.patch(
-        'app.celery.nightly_tasks.total_sent_notifications.send_total_notifications_sent_for_day_stats')  # noqa
-
-    today = date(2016, 6, 11)
-    create_ft_notification_status(bst_date=today, template=sample_template)
-    create_ft_notification_status(bst_date=today, template=sample_email_template)
-
-    # Create some notifications for the day before
-    yesterday = date(2016, 6, 10)
-    create_ft_notification_status(bst_date=yesterday, template=sample_template, count=2)
-    create_ft_notification_status(bst_date=yesterday, template=sample_email_template, count=3)
-
-    with patch.object(
-            PerformancePlatformClient,
-            'active',
-            new_callable=PropertyMock
-    ) as mock_active:
-        mock_active.return_value = True
-        send_total_sent_notifications_to_performance_platform(yesterday)
-
-        perf_mock.assert_has_calls([
-            call(datetime(2016, 6, 9, 23, 0), 'sms', 2),
-            call(datetime(2016, 6, 9, 23, 0), 'email', 3),
-            call(datetime(2016, 6, 9, 23, 0), 'letter', 0)
-        ])
-
-
 def test_should_call_delete_inbound_sms(notify_api, mocker):
     mocker.patch('app.celery.nightly_tasks.delete_inbound_sms_older_than_retention')
     delete_inbound_sms()