lib, tools: remove duplicate requires

[avivkeller]

Blocked by #54892.

The first commit is that PR.

---

The second commit (A) removes duplicate requires, and (B) updates the lint rule to check if a require in a function is unneeded due to a top-level require.

[nodejs-github-bot]

Review requested:

• @nodejs/loaders

[avivkeller]

I need to work around a few kinks it seems...

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.07%. Comparing base (3783499) to head (51d2a72).
Report is 48 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #54958      +/-   ##
==========================================
+ Coverage   88.05%   88.07%   +0.01%     
==========================================
  Files         651      652       +1     
  Lines      183387   183562     +175     
  Branches    35794    35866      +72     
==========================================
+ Hits       161488   161664     +176     
+ Misses      15160    15142      -18     
- Partials     6739     6756      +17     

Files with missing lines	Coverage Δ
lib/internal/abort_controller.js	97.88% <100.00%> (-0.03%)	⬇️
lib/internal/modules/cjs/loader.js	96.18% <100.00%> (-0.20%)	⬇️

... and 64 files with indirect coverage changes