Remove old Task schema test

tests/test_schema.py

@@ -13,20 +13,6 @@ def test_field_schema(app_ctx):
     assert test_schema.deserialize("string") == "string"
 
 
-def test_task_schema(app_ctx):
-    test_schema = schema.TaskSchema()
-    test_task_thread = ActionThread(None)
-
-    with app_ctx.test_request_context():
-        d = test_schema.dump(test_task_thread)
-        assert isinstance(d, dict)
-        assert "data" in d
-        assert "links" in d
-        assert isinstance(d.get("links"), dict)
-        assert "self" in d.get("links")
-        assert d.get("function") == "None(args=(), kwargs={})"
-
-
 def test_extension_schema(app_ctx):
     test_schema = schema.ExtensionSchema()
     test_extension = BaseExtension("org.labthings.tests.extension")