CLN: remove ABCPeriod#34218

Merged

jreback merged 2 commits intopandas-dev:masterfrom

jbrockmendel:ref-libperiod-abc

May 18, 2020

Commits on May 16, 2020

CLN: remove ABCPeriod
jbrockmendel
committed

Commits on May 18, 2020

Merge branch 'master' of https://github.com/pandas-dev/pandas into ref-libperiod-abc
jbrockmendel
committed