Reviewing the legal files for the M5 release and there is lots of stuff in the NOTICE file which I think we don't actually need and having it there makes it hard to see through all the noise to verify that we do have what is need. Past practice has been to add a copyright statement to the NOTICE file from any dependency license which included one but that is not what the ASF policy is and this has been clarified in varrious discussion around the ASF including this from VP of Legal - http://apache.markmail.org/message/u66o5ucyfquxjl7i. Looking at whats there I can't see many that we really do need so I'd like to remove all the unnecessary ones to make it clearer what the required notices really are and that we do actually include them.
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