Clean up axum-extra'a new error-response feature #5079

Job	Run time
cargo-hack	3m 37s
cargo-public-api-crates (axum)	44s
check	2m 35s
check-docs	24s
cargo-public-api-crates (axum-core)	22s
cargo-public-api-crates (axum-extra)	34s
cargo-deny check (advisories)	23s
dependencies-are-sorted	33s
Spell Check with Typos	4s
cargo-public-api-crates (axum-macros)	25s
cargo-deny check (bans licenses sources)	25s
test-nightly	1m 25s
test-msrv	2m 27s
test-docs	1m 23s
armv5te-unknown-linux-musleabi	34s
wasm32-unknown-unknown	25s
test-versions (stable)	2m 2s
test-versions (beta)	4m 4s
	22m 26s

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