Revert "Merge pull request #2483 from ajaxorg/vfs-in-browser"

This reverts commit 96bc3998a3265e6d94ae652be9a09bfd4d75c5fc, reversing
changes made to 6ba532f9c50ea1fd2203d3081a718f453cb93f96.
Merge pull request #2658 from ajaxorg/revert2483

Revert "Merge pull request #2483 from ajaxorg/vfs-in-browser"