(namespace) Revert "UBUNTU: SAUCE: fs: Allow superblock owner to change ownership of inodes with unmappable ids"

This reverts commit 6e42b32e in
order to apply the version in yakkety.
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Acked-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>