This code has been somewhat dormant since 2.9 and now it's
time to remove it.

Change-Id: I392c29d30e11b4feb362ac2f396a2f687c81c52a
Signed-off-by: Oleg Drokin <green@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/38106


Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Tested-by: jenkins <devops@whamcloud.com>