move nfs checks to single user

This is only used by code, so move it there.  The script is loaded by a lot of tools in different repos,
so lets strip it down to untangle it.

TEST=CQ passes

Change-Id: I594f9e5acb0e267b454a0a42160cd74597395228
Tested-by: Mike Frysinger <>
Commit-Ready: Mike Frysinger <>
Legacy-Commit-Queue: Commit Bot <>
Reviewed-by: Michael Mortensen <>
2 files changed