Remove SocketIO (#2019)

* Remove SocketIO

We have tried a few times to enable SocketIO in our app and it has been a challenge each step of the way, and now there is a dependency incompatibility it seems.  Given that we are in maintenance mode with the applicaiton currently and hve different plans for the interface, we are removing this dependency.

Signed-off-by: Carlo Costino <carlo.costino@gsa.gov>

* Remove more unused code and address Flake8 warnings

Signed-off-by: Carlo Costino <carlo.costino@gsa.gov>

* Revert changes to fix test

Signed-off-by: Carlo Costino <carlo.costino@gsa.gov>

---------

Signed-off-by: Carlo Costino <carlo.costino@gsa.gov>

tests/app/dao/notification_dao/test_notification_dao.py

@@ -1451,23 +1451,12 @@ def test_update_delivery_receipts(mocker):
     mock_update.where.return_value = mock_where
     mock_where.values.return_value = mock_values
 
-    FakeJob = type(
-        "FakeJob",
-        (object,),
-        {"id": "job-123", "notification_count": 5, "job_status": "delivered"},
-    )
-
-    fake_result = MagicMock()
-    fake_result.scalars.return_value.all.return_value = ["job-1", "job-2"]
-    fake_result.scalars.return_value.one.return_value = FakeJob()
-
-    mock_session.execute.side_effect = lambda *args, **kwargs: fake_result
+    mock_session.execute.return_value = None
     with patch("app.dao.notifications_dao.update", return_value=mock_update):
         dao_update_delivery_receipts(receipts, delivered)
     mock_update.where.assert_called_once()
     mock_where.values.assert_called_once()
-    mock_session.execute.assert_any_call(mock_values)
-    assert mock_session.execute.call_count == 4
+    mock_session.execute.assert_called_once_with(mock_values)
     mock_session.commit.assert_called_once()
 
     args, kwargs = mock_where.values.call_args