Revert "Manage osd journal as a lvm"

This reverts commit ae66e2226aab65fd1a448866b6ac0a9661b5ac6e.
Merge commit '8f50fd518a384e9d9f04c87e4c748c187c281655' into staging
Merge pull request #1 from raphink/fix_merge

Revert "Manage osd journal as lvm"