Robert C Jennings 0acda846dd live-build/ubuntu-cpc/functions: Add teardown_mountpoint to reverse setup_mountpoint
* live-build/ubuntu-cpc/functions: Add a function, teardown_mountpoint,
  to reverse the work done in setup_mountpoint.  Lack of this function
  has forced users of setup_mountpoint to implement this separately
  and the implementations have diverged. (LP: #1716992)
* live-build/ubuntu-cpc/functions: Remove umount_settle function.
  The was only used where teardown_mountpoint was lacking.
2017-09-13 13:18:03 -05:00
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