Revert "TST: skip pytables test with not-updated pytables conda package (pandas-dev#22099)"

This reverts commit 017e910.

Author: TomAugspurger

pandas/tests/io/test_pytables.py

@@ -14,7 +14,7 @@
 from pandas import (Series, DataFrame, Panel, MultiIndex, Int64Index,
                     RangeIndex, Categorical, bdate_range,
                     date_range, timedelta_range, Index, DatetimeIndex,
-                    isna, compat, concat, Timestamp, _np_version_under1p15)
+                    isna, compat, concat, Timestamp)
 
 import pandas.util.testing as tm
 import pandas.util._test_decorators as td
@@ -2191,10 +2191,6 @@ def test_unimplemented_dtypes_table_columns(self):
             # this fails because we have a date in the object block......
             pytest.raises(TypeError, store.append, 'df_unimplemented', df)
 
-    @pytest.mark.skipif(
-        not _np_version_under1p15,
-        reason=("pytables conda build package needs build "
-                "with numpy 1.15: gh-22098"))
     def test_calendar_roundtrip_issue(self):
 
         # 8591