Remove the unused xfiles/xcontent VFS implementation
Created by: chrismwendt
The xfiles/xcontent-backed VFS implementation was always disabled (var UseRemoteFS = false
), and there are no plans to switch back from the current zip archive implementation.
I will be moving buildserver-related code from xlang-go to go-langserver soon, and this will be one less piece to think about.
This PR does not need to update the CHANGELOG because I'm removing something that was always disabled.