Remove some unnecessary feature gates

[oli-obk]

fixes #56585

cc @jethrogb

[rust-highfive]

r? @alexcrichton

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[jethrogb]

Mostly LGTM

For the 2 functions you removed, can you put #[allow(unused)] or #[cfg(false)] instead?

[rust-highfive]

The job x86_64-gnu-llvm-5.0 of your PR failed on Travis (raw log). Through arcane magic we have determined that the following fragments from the build log may contain information about the problem.

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travis_time:end:1d63d400:start=1544520950345851071,finish=1544520951421633700,duration=1075782629 $ git checkout -qf FETCH_HEAD travis_fold:end:git.checkout Encrypted environment variables have been removed for security reasons. See https://docs.travis-ci.com/user/pull-requests/#Pull-Requests-and-Security-Restrictions $ export SCCACHE_BUCKET=rust-lang-ci-sccache2 $ export SCCACHE_REGION=us-west-1 Setting environment variables from .travis.yml $ export IMAGE=x86_64-gnu-llvm-5.0 --- [00:04:12] command did not execute successfully: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/bin/cargo" "build" "--target" "x86_64-unknown-linux-gnu" "-j" "4" "--release" "--locked" "--color" "always" "--features" "panic-unwind backtrace" "--manifest-path" "/checkout/src/libstd/Cargo.toml" "--message-format" "json" [00:04:12] expected success, got: exit code: 101 [00:04:12] failed to run: /checkout/obj/build/bootstrap/debug/bootstrap build [00:04:12] Build completed unsuccessfully in 0:00:50 [00:04:12] Makefile:28: recipe for target 'all' failed [00:04:12] make: *** [all] Error 1 

I'm a bot! I can only do what humans tell me to, so if this was not helpful or you have suggestions for improvements, please ping or otherwise contact @TimNN. (Feature Requests)

[oli-obk]

For the 2 functions you removed, can you put #[allow(unused)] or #[cfg(false)] instead?

Any particular reason? Can't you just git revert 1346619 when you need them?

[jethrogb]

Oh I didn't see it was a separate commit. Sure, that works.

[alexcrichton]

@bors: r+

[bors]

📌 Commit 5457b19 has been approved by alexcrichton