python.pkgs.txaio: fix build

pkgs/development/python-modules/txaio/default.nix

@@ -1,7 +1,6 @@
 { stdenv, buildPythonPackage, fetchPypi, pytest, mock, six, twisted }:
 
 buildPythonPackage rec {
-  name = "${pname}-${version}";
   pname = "txaio";
   version = "2.9.0";
 
@@ -10,18 +9,12 @@ buildPythonPackage rec {
     sha256 = "dfc3a7d04b4b484ae5ff241affab5bb01306b1e950dd6f54fd036cfca94345d0";
   };
 
-  buildInputs = [ pytest mock ];
+  checkInputs = [ pytest mock ];
 
   propagatedBuildInputs = [ six twisted ];
 
-  patchPhase = ''
-    sed -i '152d' test/test_logging.py
-  '';
-
-  # test_chained_callback has been removed just post-2.7.1 because the functionality was decided against and the test
-  # breaks on python 3.6 https://github.com/crossbario/txaio/pull/104
   checkPhase = ''
-    py.test -k "not (test_sdist or test_chained_callback)"
+    py.test -k "not test_sdist"
   '';
 
   meta = with stdenv.lib; {