test: Removed obsolete test

[breautek]

Platforms affected

None

Motivation and Context

There was a test commented out due to lacking support of passing through XML attributes on preference tags, as documented here, however it was decided that this is not going to be a supported feature.

This pr just removes the commented out test.

Description

Testing

Ran npm test

Checklist

• [x] I've run the tests to see all new and existing tests pass
• [x] I added automated test coverage as appropriate for this change
• [x] Commit is prefixed with (platform) if this change only applies to one platform (e.g. (android))
• [x] If this Pull Request resolves an issue, I linked to the issue in the text above (and used the correct keyword to close issues using keywords)
• [x] I've updated the documentation if necessary

[codecov-commenter]

Codecov Report

Merging #198 (748aa34) into master (cc78c81) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #198   +/-   ##
=======================================
  Coverage   88.38%   88.38%           
=======================================
  Files          20       20           
  Lines        1145     1145           
=======================================
  Hits         1012     1012           
  Misses        133      133           

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