Remove duplicated `Rustdoc::output` method from `run-make-support` lib#129122

bors merged 2 commits intorust-lang:masterrust-lang/rust:masterfrom

GuillaumeGomez:remove-duplicated-rustdoc-output-methodsGuillaumeGomez/rust:remove-duplicated-rustdoc-output-methodsCopy head branch name to clipboard