Removed listeners/actions on Media browser data view double click

### What does it do ?

Removes a function that was triggered when double clicking an item on the media browser data view (the data view extends `MODx.browser.View`, which sets a [listener](https://github.com/modxcms/revolution/blob/master/manager/assets/modext/core/modx.view.js#L428) on "double click")

### Why is it needed ?

I suppose either the original behavior was to be able to edit any text files (which was not implemented) or this is a leftover/copy paste legacy :)

### Related issue(s)/PR(s)

Closes #12032