CI: Fix lint error on master (#34230)

mroeschke · Matt Roeschke · web-flow · commit dede2c7a1e71 · 2020-05-18T09:00:32.000+02:00
Co-authored-by: Matt Roeschke &lt;mroeschke@housecanary.com&gt;
diff --git a/pandas/core/indexes/base.py b/pandas/core/indexes/base.py
@@ -54,7 +54,6 @@
     ABCCategorical,
     ABCDataFrame,
     ABCDatetimeIndex,
-    ABCIntervalIndex,
     ABCMultiIndex,
     ABCPandasArray,
     ABCPeriodIndex,
