Remove config.hash=bootstrap tag on imported tf VM

[kaufers]

We want to keep the import flow generic. Currently, the tf plugin assumes that the VM being imported is the initial manager and it sets the infrakit.config.hash=bootstrap tag. Instead of doing this in the plugin, the initial VM should simply be created with this tag; this is consistent with how the infrakit-link=bootstrap tag needs to be set.

[codecov[bot]]

Codecov Report

Merging #866 into master will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #866   +/-   ##
=======================================
  Coverage   48.78%   48.78%           
=======================================
  Files          91       91           
  Lines        8210     8210           
=======================================
  Hits         4005     4005           
  Misses       3835     3835           
  Partials      370      370

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[GordonTheTurtle]

Please sign your commits following these rules: https://github.com/moby/moby/blob/master/CONTRIBUTING.md#sign-your-work The easiest way to do this is to amend the last commit:

$ git clone -b "tf-bootstrap-config-hash" git@github.com:kaufers/infrakit.git somewhere
$ cd somewhere
$ git rebase -i HEAD~842353798896
editor opens
change each 'pick' to 'edit'
save the file and quit
$ git commit --amend -s --no-edit
$ git rebase --continue # and repeat the amend for each commit
$ git push -f

Amending updates the existing PR. You DO NOT need to open a new one.