Drop Hypothesis pin in testing

alexwlchan · alexwlchan · commit 7964f9de026b · 2017-09-04T09:36:20.000+01:00
diff --git a/test_requirements.txt b/test_requirements.txt
@@ -1,3 +1,3 @@
 pytest==3.2.1
-hypothesis==3.23.2
+hypothesis
 coverage==4.4.1
