From: Naoya Horiguchi <naoya.horiguchi@xxxxxxx>
With the introduction of mf_mutex, most of memory error handling
process is mutually exclusive, so the in-line comment about
subtlety about double-checking PageHWPoison is no more correct.
So remove it.
Suggested-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Signed-off-by: Naoya Horiguchi <naoya.horiguchi@xxxxxxx>