CI: Fixed pytest minversion (#23520)

TomAugspurger · web-flow · commit 54982c24ed23 · 2018-11-05T16:23:46.000-08:00
diff --git a/setup.cfg b/setup.cfg
@@ -36,7 +36,6 @@ split_penalty_after_opening_bracket = 1000000
 split_penalty_logical_operator = 30
 
 [tool:pytest]
-minversion = 3.6
 testpaths = pandas
 markers =
     single: mark a test as single cpu only
