Remove random markdown file from root

[nekevss]

Not exactly sure why this was added, but it doesn't appear to be needed.

[github-actions]

Test262 conformance changes

Test result	main count	PR count	difference
Total	52,963	52,963	0
Passed	50,545	50,545	0
Ignored	1,426	1,426	0
Failed	992	992	0
Panics	2	2	0
Conformance	95.43%	95.43%	0.00%

Tested main commit: 817b6eaade662a49434c5d295667068a4875b378
Tested PR commit: 8ffa29146ee5b7559792aa400a6a219d05cf5e9a
Compare commits: 817b6ea...8ffa291

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 59.80%. Comparing base (6ddc2b4) to head (8ffa291).
⚠️ Report is 917 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #5224       +/-   ##
===========================================
+ Coverage   47.24%   59.80%   +12.56%     
===========================================
  Files         476      582      +106     
  Lines       46892    63460    +16568     
===========================================
+ Hits        22154    37955    +15801     
- Misses      24738    25505      +767     

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