Revert "Use Mtimespec instead of Mtim to compile on darwin"
Revert "Use Mtimespec instead of Mtim to compile on darwin"

This reverts commit 209094e42d821c7e9031b27677ab02f702bf5534, which
needs additional work to keep things building on other targets.

containers/storage,rhatdan/storage,containers/storage,containers/storage,rhatdan/storage,rhatdan/storage