Fully deprecate anything marked deprecated since 3.0.0

[MichaelChirico]

Note that we can't use lintr_deprecated(signal = "stop") for the removed linters (e.g. closed_curly_linter()) because we test that all linters (under linters_with_tags(exclude_tags = NULL)) can be instantiated. So we have to make a clean removal already.

[codecov-commenter]

Codecov Report

Attention: 5 lines in your changes are missing coverage. Please review.

Comparison is base (d9b2989) 99.64% compared to head (b8f95eb) 99.44%.

❗ Current head b8f95eb differs from pull request most recent head e5b4a44. Consider uploading reports for the commit e5b4a44 to get more accurate results

Files	Patch %	Lines
R/lintr-deprecated.R	0.00%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2284      +/-   ##
==========================================
- Coverage   99.64%   99.44%   -0.20%     
==========================================
  Files         115      115              
  Lines        5331     5258      -73     
==========================================
- Hits         5312     5229      -83     
- Misses         19       29      +10     

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[AshesITR]

Re removal of deprecated linters: Can't we rewrite the test somehow to allow for hard deprecations? Maybe a special tag "defunct", or logic that tests missing linters for hard-deprecation and allows them not to appear in linters.csv?
Seems a bit harsh to skip from warning to removal.

[MichaelChirico]

Maybe a special tag "defunct"

That SGTM.

[AshesITR]

CRAN is down ATM 👀

[MichaelChirico]

CRAN is down ATM 👀

Noting here as well my ref from #2289 for completeness:

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Yes, CRAN is undergoing scheduled maintenance:

https://bsky.app/profile/eddelbuettel.com/post/3keb4kxyzpj2v