removed url validation form normalizeSpriteURL

[Kai-W]

Temporary Fix for normalizeSpriteURL not working with relative URLs
See Issue #3897
Permanent Fix with API Breaking Changes: #3898

• Confirm your changes do not include backports from Mapbox projects (unless with compliant license) - if you are not sure about this, please ask!
• Briefly describe the changes in this PR.
• Link to related issues.
• Include before/after visuals or gifs if this PR includes visual changes.
• Write tests for all new functionality.
• Document any changes to public APIs.
• Post benchmark scores.
• Add an entry to CHANGELOG.md under the ## main section.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.69%. Comparing base (bec0505) to head (9c1e1c0).
Report is 7 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3923      +/-   ##
==========================================
+ Coverage   86.65%   86.69%   +0.03%     
==========================================
  Files         242      242              
  Lines       32479    32456      -23     
  Branches     1979     1977       -2     
==========================================
- Hits        28146    28139       -7     
+ Misses       3391     3388       -3     
+ Partials      942      929      -13     

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