message: Remove install script from wasmer repo
  We're hosting it at github.com/wasmerio/wasmer-install now
diff: # Changelog
  ## **[Unreleased]**
  +- [#1645](https://github.com/wasmerio/wasmer/pull/1645) Move the install script to https://github.com/wasmerio/wasmer-install
  ## 1.0.0-alpha3 - 2020-09-14
  - [#1620](https://github.com/wasmerio/wasmer/pull/1620) Fix bug causing the Wapm binary to not be packaged with the release
  