DEPR: Clean up list of deprecations from prior versions

[jsexauer]

Log for previous deprecations, once they are actually removed, move the issue to #13777

We try to keep these for three major versions as actual deprecations. e.g. deprecate in 0.17, 0.18 & 0.19 get the warning, removed in 0.20.

0.24.0

• DEPR: __array__ for tz-aware Series/Index #24596 __array__ for tzaware Series/Index (0.24.0)

[TomAugspurger]

Just FYI, cols is used in to_csv and to_excel as well.

[jreback]

@TomAugspurger good point!

@jsexauer would you do another PR to deprecate cols in to_csv / to_excel (e.g. do what you did in pivot, still accept it, but provide the warning, and substitue columns)

[jsexauer]

Sure no problem.

[jorisvandenbossche]

@jreback I was thinking, now that we are alse deprecating this in to_csv and to_excel, shouldn't we keep this deprecation cycle longer than one release? Because I don't know if the majority of the users update their version every release.

[jtratner]

I agree with @jorisvandenbossche - giving an additional release cycle as buffer would be prudent.

[jreback]

certainly
just keeping open issues as reminders
I just removed the old syntax in in sort I think from like < 0.8!

though maybe will change them to say 0.16 so are at the correct point