Revert "Treble-ize tmpfs access"

This reverts commit 04f84ff1a7d4e50eb1dd88b6b39c5ec32749cfe6.

Reason for revert:
This change is no longer necessary due to aosp/889855 which moves all
apps to a shared tmpfs type. It's simpler, and significantly less 
likely to cause build breakages in downstream trees.
Bug: 122854450

Change-Id: If3e4e6fd7f1e9bed980e82ac53718c9a1d2af16d
2 files changed