Revert "ANDROID: Incremental fs: Create mapped file"

This reverts commit 99c5990637408834c265d58be8452a397cdc558c.

Set incfs back to rvc shipping incfs

Bug: 178509184
Test: incfs_test passes
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Change-Id: I4905262b7a27ce516a193e911f0880d7f129b008
7 files changed