Revert "enforce rados put aligment"

This reverts commit 7a58da53ebfcaaf385c21403b654d1d2f1508e1a.

This was alread backported in dece65064d949b5afcc359cd408615883b5e002a.

Fixes: #8996
Signed-off-by: Sage Weil <sage@redhat.com>