Revert "contint: tidy Nodepool slaves config history"
Puppet tidy lacks a bunch of features such as being able
to do a match against the whole patch. It does it solely
against the file basename which is not what I wanted to do.
This reverts commit 4bbfd3b9ec21e044a15d0c4e78736cac2332af2c.
Bug: T126552
Change-Id: Ibf289e4f6cd77a3367f7b5ebe4a9283749b9338c