Remove edit / cancel button

[arthurdm]

When in the "Try it out" mode for POST/PUT endpoints, there's a button that appears below the text editor box that toggles between Cancel and Edit.

Why do we need it? I think it's much simpler to not have these buttons, and just remain in "edit mode" when someone is already inside the "development mode" (try it out mode).

Having the Cancel button there confused me into thinking that this button would Cancel the request (not the editor mode).

[webron]

@Minasokoni - we should discuss this as well. I have some additional thoughts here.