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Signed-off-by: Naveen Tatikonda navtat@amazon.com
Description
This PR will clean up all the authentication mechanisms not supported by OpenSearch and test specs.
Issues Resolved
https://github.com/opensearch-project/logstash-input-opensearch/issues/8
Check List
By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license. For more information on following Developer Certificate of Origin and signing off your commits, please check here.