Remove app initialisation in test
Remove app initialisation in test

* wqflask/tests/wqflask/show_trait/test_show_trait.py: Delete
"wqflask.app" import.
(TestTraits.setUp): Delete it.
(TestTraits.tearDown): Ditto.

genenetwork/genenetwork2,genenetwork/genenetwork2,genenetwork/genenetwork2,genenetwork/genenetwork2