Removed non-working HerokuCLI version 7.42.1 (#4391)

manifests/Heroku/HerokuCLI/7.42.1.yaml

@@ -1,16 +0,0 @@
-Id: Heroku.HerokuCLI
-Version: 7.42.1
-Name: HerokuCLI
-Publisher: Heroku
-License: ISC License
-LicenseUrl: https://github.com/heroku/cli/blob/master/LICENSE
-Description: The Heroku Command Line Interface (CLI) makes it easy to create and manage your Heroku apps directly from the terminal. It’s an essential part of using Heroku.
-Homepage: https://devcenter.heroku.com/articles/heroku-cli
-Installers:
-  - Arch: x64
-    Url: https://cli-assets.heroku.com/heroku-x64.exe
-    Sha256: 8605ce87caf8e6e3bba40a2ba5202f4d1d590bfeadaa89132866155a74caef85
-    InstallerType: exe
-    Switches:
-      Silent: /S
-      SilentWithProgress: /S