Removed class relocations from s3-hadoop and s3-presto filesystems to facilitate the use any credential providers.
* as a consequence s3-hadoop and s3-presto can only be used as plugins
* other filesystems are strongly recommended to be only used as plugins
FLINK-15215Not able to provide a custom AWS credentials provider with flink-s3-fs-hadoop
is related to
FLINK-15355Nightly streaming file sink fails with unshaded hadoop