Remove unused param/method

[alimcmaster1]

• [y] passes git diff upstream/master -u -- "*.py" | flake8 --diff

-Remove unused param "op" in _validate_for_numeric_unaryop. ( Param remove from single call of function)

-Static method _from_element appears to be unused

[codecov]

Codecov Report

Merging #22289 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master   #22289      +/-   ##
==========================================
+ Coverage   92.08%   92.08%   +<.01%     
==========================================
  Files         169      169              
  Lines       50694    50691       -3     
==========================================
- Hits        46682    46680       -2     
+ Misses       4012     4011       -1

Flag	Coverage Δ
#multiple	90.49% <100%> (ø)	⬆️
#single	42.34% <50%> (-0.01%)	⬇️

Impacted Files	Coverage Δ
pandas/core/indexes/multi.py	95.41% <ø> (+0.07%)	⬆️
pandas/core/indexes/datetimes.py	95.54% <ø> (ø)	⬆️
pandas/core/indexes/base.py	96.43% <100%> (ø)	⬆️

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[gfyoung]

IMO the changes are semantically distinct enough that they should be broken up into separate PR's for evaluation. @alimcmaster1 : what do you think?

cc @jreback

[alimcmaster1]

Sure @gfyoung , happy to break it up makes it easier to review.

See new PR's here:
#22321
#22323
#22322
#22324

Ill close this one :)