Revert "Accept header forces application/json type even if server"

[wing328]

Revert #10337

This reverts commit 18301d0.

PR checklist

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• Pull Request title clearly describes the work in the pull request and Pull Request description provides details about how to validate the work. Missing information here may result in delayed response from the community.
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  ./bin/generate-samples.sh
  ./bin/utils/export_docs_generators.sh
  

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