Delete unused 'maven-s3-wagon' Maven extension
Delete unused 'maven-s3-wagon' Maven extension

This Maven extension was used to upload artifacts to an S3 bucket.
Supposedly this was needed to make deployments work against our own
hosted Archiva instance. Now that Archiva is taken down, there is no
need for this wagon plugin.

Kurento/adm-scripts,Kurento/adm-scripts