[Bug][Rust] fix: removes replacement which makes x-tag-name incompatible with spec

[NickUfer]

Fixes #14745

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[NickUfer]

@frol (2017/07) @farcaller (2017/08) @richardwhiuk (2019/07) @paladinzh (2020/05) @jacob-pro (2022/10)

[wing328]

LGTM but I've not tested locally.

let's give it a try. thanks for the PR.