Remove stuff that was deprecated for 2.5.0

[n2ygk]

Description of the Change

Removes deprecations that were warned would be removed in 2.5.0

Checklist

• PR only contains one change (considered splitting up PR)
• unit-test added
• documentation updated
• CHANGELOG.md updated (only for user relevant changes)
• author name in AUTHORS

[n2ygk]

@dopry @tonial I took a crack at removing the deprecations you had added. Please take a look and make sure I didn't mess it up.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.42%. Comparing base (560f84d) to head (24ed763).
Report is 14 commits behind head on master.

❗ Current head 24ed763 differs from pull request most recent head 692ab13

Please upload reports for the commit 692ab13 to get more accurate results.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1425      +/-   ##
==========================================
- Coverage   97.56%   97.42%   -0.14%     
==========================================
  Files          32       32              
  Lines        2132     2096      -36     
==========================================
- Hits         2080     2042      -38     
- Misses         52       54       +2     

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[dopry]

Looks good at a glance. I'll give it a more thorough review tomorrow.

[tonial]

Seems good to me 👍

[dopry]

Sorry work got the better for me for a hearbeat. LGTM.

[n2ygk]

ugh codespell is messing us up.