Remove deprecated configuration properties

[dreis2211]

Hi,

I just noticed that the deprecated server.connection-timeout was deprecated in 2.1.x already (see #18473) . While relatively late in the 2.3.x release, I was wondering if we could remove it still for 2.3.x?

If the decision is made to remove it, I'm happy to do it in a PR. Let me know what you think.

Cheers,
Christoph

[snicoll]

Thanks for the nudge @dreis2211. I've noticed additional properties that should have been cleaned up from the 2.2.x release:

• server.use-forward-headers
• server.tomcat.max-http-post-size
• server.jetty.max-http-post-size

Removing connect-timeout seems a no brainer to me but I do wonder about those three so late in the 2.3.x release indeed. Flagging for team attention to see what the rest of the team think.

[dreis2211]

I think they were missed because they didn't have a @deprecated since 2.1.x. Anyhow, if you made up your mind I'm happy to provide a PR for it.

[snicoll]

Those 3 were deprecated in 2.2.x but I think you're right. I've added a comment to that effect in #20812