Revert "use python's builtin mount point detection instead"

This reverts commit 5036c72cb530a87f4127c06268aa1fb40b1e24e8.

Conflicts:
	library/files/stat
Revert "ansible coding guidelines fix"

This reverts commit 76ba1bb6c154e68ca56474e9203602c245b3a75f.

Conflicts:
	library/files/stat
Revert "yum module downgrade support"

This reverts commit 8fa4cae89cac1626cc2f929415819448803615df.