Unnecessary dependency h2

[daniel-pfeiffer]

Context

For a backend on localhost, I do not need HTTP/2. But neither of these prevents it from being added:

# not directly needed, testing it's not a failure of a-web forwarding features
actix-http = { version = "*", default-features = false }
actix-web = { version = "*", default-features = false, features = ["macros"] }

Your Environment

Rust 1.71 actix-web v4.3.1 actix-http v3.3.1

[robjtede]

I've reverted this change because I neglected to test it properly before pushing. We actually need h2 for the auto-h2c features even when TLS is not enabled.