remove the allure reference, ensure things are updated

.travis.yml

@@ -6,7 +6,7 @@ python:
 - '3.5'
 - '3.6'
 - pypy
-install: pip install tox-travis coveralls
+install: pip install -U setuptools tox tox-travis coveralls
 script:
 - tox
 after_success:

testing/conftest.py

@@ -1,6 +1,5 @@
 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals
-import allure
 import pytest
 
 import codecs
@@ -38,10 +37,3 @@ def browser(selenium, httpserver, request):
     httpserver.serve_content(codecs.open(testfilename, mode='r', encoding='utf-8').read())
     selenium.get(httpserver.url)
     return CustomBrowser(selenium)
-
-
-def pytest_exception_interact(node, call, report):
-    if selenium_browser is not None:
-        allure.attach(
-            'Error screenshot', selenium_browser.get_screenshot_as_png(), allure.attach_type.PNG)
-        allure.attach('Error traceback', str(report.longrepr), allure.attach_type.TEXT)