Revert "Fixup "tmpfs: fix mempolicy object leaks""

This reverts commit 353fab3059b24c179b03f96f32acb6699a6d2ab3.
Revert "tmpfs: fix mempolicy object leaks"

This reverts commit 270a13978d3e2b93a1d935e6c00e32c29c5fcb14.