Remove redundant assertions outside of the StandardValidator

[AmadiMichael]

fixes #16362

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.14%. Comparing base (9727a76) to head (fe59bc5).

Additional details and impacted files

@@             Coverage Diff              @@
##           develop   #16425       +/-   ##
============================================
+ Coverage    47.05%   82.14%   +35.09%     
============================================
  Files         1390      161     -1229     
  Lines       112444     8883   -103561     
============================================
- Hits         52910     7297    -45613     
+ Misses       55805     1448    -54357     
+ Partials      3729      138     -3591     

Flag	Coverage Δ
cannon-go-tests-64	67.10% <ø> (-0.80%)	⬇️
contracts-bedrock-tests	96.24% <ø> (ø)

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see 1234 files with indirect coverage changes

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