As the title suggests, in accordance with the aim of reducing the maintenance burden, I want to propose removal of the GelfLayout from master, not release-2.x! Currently, JsonTemplateLayout already ships a template producing exactly the same output as GelfLayout; see GelfLayout.json template and GelfLayoutTest class. The only missing piece of the puzzle is compression support, which I am gonna address in LOG4J2-3023 <https://issues.apache.org/jira/browse/LOG4J2-3023>. Do I have a go for this operation? What do you think?
On the other hand, I wish we would be able to implement compression as some sort of filter applicable to layouts. Is such a thing possible?
