[java][jaxrs-jersey][java-msf4j] remove jersey 1

[martin-mfg]

closes #13783

I assume jersey 1 should still be removed, even though the original target version 7.0 is released already. So I think this should go into the 8.x branch, but that doesn't exist yet.

Also, I removed jersey1 everywhere, not just in the java client generator.

After removing jersey1, in some places jersey2 is the only left option. E.g. for generator "jaxrs-jersey", the "library" option can only be "jersey2". For now I anyway left the "library" option in place, because we might want to add jersey 3 there. If you want me to remove the "library" option alltogether, please let me know.

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• Read the contribution guidelines.
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  ./bin/generate-samples.sh ./bin/configs/*.yaml
  ./bin/utils/export_docs_generators.sh
  

  Commit all changed files.
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[wing328]

For now I anyway left the "library" option in place, because we might want to add jersey 3 there. If you want me to remove the "library" option alltogether, please let me know.

we can keep it for the time being