Description: Don't mark warning as error in pytest during build
Author: Ondřej Nový (onovy@debian.org)

We don't have python-pytest-timeout (for Python 2) so we need to ignore
warning about PytestUnknownMarkWarning.

--- a/setup.cfg
+++ b/setup.cfg
@@ -9,7 +9,6 @@
 testpaths = tests
 norecursedirs = tests/hypothesis
 filterwarnings =
-    error
     ignore::requests.packages.urllib3.exceptions.InsecureRequestWarning
     ; warning about collections.abc fixed in watchdog master
     ignore::DeprecationWarning:watchdog.utils.bricks:175