src: remove license headers for new node_profiling files

[legendecas]

Remove unnecessary license headers for the new node_profiling files.

Refs: #63008 (comment)
Refs: #62273

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.65%. Comparing base (9ab960a) to head (8ec051d).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #63066      +/-   ##
==========================================
- Coverage   89.65%   89.65%   -0.01%     
==========================================
  Files         712      712              
  Lines      220498   220498              
  Branches    42285    42276       -9     
==========================================
- Hits       197693   197689       -4     
+ Misses      14673    14663      -10     
- Partials     8132     8146      +14     

Files with missing lines	Coverage Δ
src/node_profiling.cc	81.33% <ø> (ø)
src/node_profiling.h	100.00% <ø> (ø)

... and 46 files with indirect coverage changes

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.