Remove aspirational documentation in preparation for a documentation-only update.
Remove aspirational documentation in preparation for a documentation-only update.

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