Removing scheduler.py.
Removing scheduler.py.

abalkin/dateutil,Bachmann1234/dateutil,jenshnielsen/dateutil,abalkin/dateutil,sprymix/dateutil,adamgreig/python-dateutil,mjschultz/dateutil,emsoftware/python-dateutil,sprymix/python-dateutil,pganssle/dateutil-test-codecov,pganssle/dateutil-test-codecov