Michael Ybanez

remove unused 'let stream' as it prevents access to window.stream

2

The `let stream` declaration at the start adds the `stream` variable to the script's scope. Unfortunately, this means that all references to `stream` such as in [gum()](https://github.com/mikeybanez/WebRTC-Camera-Resolution/blob/a5886eff08b96df5958792a52c4aa58b88f0f730/js/resolutionScan.js#L158) do not refer...