Revert "Expect the Default tmpfs in platform_FilePerms"

This reverts commit 2d8ab02ecab6b50f01326ec84a63aeefc36f9fae.

We're taking away the tmpfs on /home/chronos/Default, at least
temporarily.

BUG=chromium:297666
TEST=run this test with dependent change landed; it should succeed.
CQ-DEPEND=If60df4b202e7f05961476adf06d01d7dc59d6efd

Change-Id: Iba246df93bc98af4c4339cf396317aca83846450
(cherry picked from commit c8669244f0861a9fd54906962fcbaad9633cf544)
Reviewed-on: https://chromium-review.googlesource.com/171662
Reviewed-by: Chris Masone <cmasone@chromium.org>
Commit-Queue: Chris Masone <cmasone@chromium.org>
Tested-by: Chris Masone <cmasone@chromium.org>
1 file changed