Don’t show status for individual letters

The status won’t ever change from sending for letters. For now at least.
And even when we do come up with more useful statuses I’m not convinced
it’s useful to expose them to our admin users.

A more useful piece of information to show is when we think the letter
will be delivered.

tests/app/main/views/test_notifications.py

@@ -110,3 +110,27 @@ def test_notification_page_doesnt_link_to_template_in_tour(
         'sample template sent by Test User on 1 January at 1:01am'
     )
     assert len(page.select('main p:nth-of-type(1) a')) == 0
+
+
+@freeze_time("2016-01-01 01:01")
+def test_notification_page_shows_status_of_letter_notification(
+    client_request,
+    mocker,
+    fake_uuid,
+):
+
+    mock_get_notification(mocker, fake_uuid, template_type='letter')
+
+    page = client_request.get(
+        'main.view_notification',
+        service_id=SERVICE_ONE_ID,
+        notification_id=fake_uuid,
+    )
+
+    assert normalize_spaces(page.select('main p:nth-of-type(1)')[0].text) == (
+        'sample template sent by Test User on 1 January at 1:01am'
+    )
+    assert normalize_spaces(page.select('main p:nth-of-type(2)')[0].text) == (
+        'Estimated delivery date: 6 January'
+    )
+    assert page.select('p.notification-status') == []