Revert "ima: use fs method to read integrity data"

This reverts commit d6cca80c54f826c410d237b2feee458356d72c3d.

This patch is broken and needs to be reworked, per report
from Linus.  Reverting this will restore existing behavior
where xfs locks up with IMA.

Signed-off-by: James Morris <james.l.morris@oracle.com>
15 files changed