message: Adjust invalidation process
diff: @@ -39,15 +39,8 @@ RUSTUP_DIST_SERVER=https://dev-static.rust-lang.org rustup update stable
  If something goes wrong, and we rebuild stable artifacts, you'll need to
  invalidate the dev-static bucket for RCS to re-release it.
  -1. Download https://dev-static.rust-lang.org/dist/channel-rust-1.35.0.toml The
  - version number must be less than the current release, but otherwise doesn't
  - matter.
  -1. Rename the file locally to channel-rust-stable.toml
  -1. Upload the file to the dev-static bucket into the dist folder, replacing
  - channel-rust-stable.toml.
  -1. Go to CloudFront in AWS, to the dev-static bucket, and issue an invalidation
  - for "/dist/channel-rust-stable.toml". This is necessary until
  - https://github.com/rust-lang/rust-central-station/issues/49 is fixed.
  +1. Obtain AWS credentials (i.e., `aws-creds.py` from `rust-lang/simpleinfra`).
  +1. Run the `invalidate-dev-static-stable.sh` script in `rust-lang/simpleinfra`.
  1. (optional) login to central station, and run the following. This starts the
  dev-static promotion immediately, vs. waiting till the next hour.
  