TST: remove skip for values/index length mismatch in ExtensionArray tests

[jorisvandenbossche]

#19342 is fixed in the meantime

[codecov]

Codecov Report

Merging #20577 into master will increase coverage by 0.02%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #20577      +/-   ##
==========================================
+ Coverage   91.82%   91.84%   +0.02%     
==========================================
  Files         152      152              
  Lines       49255    49255              
==========================================
+ Hits        45226    45240      +14     
+ Misses       4029     4015      -14

Flag	Coverage Δ
#multiple	90.23% <ø> (+0.02%)	⬆️
#single	41.9% <ø> (ø)	⬆️

Impacted Files	Coverage Δ
pandas/util/testing.py	84.73% <0%> (+0.2%)	⬆️
pandas/plotting/_converter.py	66.81% <0%> (+1.73%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 4efb39f...db6f6d8. Read the comment docs.

[TomAugspurger]

Thanks!