message: Clean up readme
  Remove information about 1.16
diff: @@ -29,23 +29,6 @@ The C# extension is powered by [OmniSharp](https://github.com/OmniSharp/omnishar
  * Added omnisharp.minFindSymbolsFilterLength setting to configure the number of characters a user must type in for "Go to Symbol in Workspace" command to return any results
  * Added a command - "CSharp: Start authoring a new issue on GitHub" to enable the users to file issues on github from within the extension with helpful config information from their system
  -### What's New in 1.16.2
  -* Update extension to handle upcoming breaking change to launch.json configurations in VS Code 1.28.
  -* Fixed launch.json `envFile` option on Windows
  -* Fixed a bug where OmniSharp flame was red inspite of OmniSharp loading the projects without any errors.
  -* Fixed a problem with tracking virtual documents from other providers
  -
  -### What's New in 1.16.0
  -
  -* Debugger support for launching with environment variables stored in a separate file from launch.json via a new `envFile` option.
  -* Debugger support for hit count breakpoint conditions.
  -* Enabled IDE features for .cs files that are not part of a project.
  -* Modified the "Unresolved dependencies" prompt to restore the all the projects in the currently selected solution or workspace.
  -* Added support to configure the default *.sln file loaded when opening a project with multiple *.sln files in the root.
  -* Added verbosity to the test execution output when running test using codelens.
  -* Added `monoPath` option to use the mono installation at the specified path when the `useGlobalMono` is set to "always" or "auto".
  -* Many other bug fixes!
  -
  See our [change log](https://github.com/OmniSharp/omnisharp-vscode/blob/v1.17.0/CHANGELOG.md) for more detail.
  ### Supported Operating Systems for Debugging
  