Use the default nodeset for plugin builds

This will switch from using the larger 60GB dedicated CPU builds
to the smaller e2 vms.  Plugin builds shouldn't be very much slower
(some quick testing shows this adds about a minute), but we should
have more quota headroom, and of course, the e2 vms are a friendlier
use of resources requested by Google.

Change-Id: Iad9148318853f72064447deb7787e462a3891420
1 file changed
tree: 670c01b97d9a74e247803d4f6091bf1056d97a5e
  1. .gitreview
  2. LICENSE
  3. README
  4. playbooks/
  5. roles/
  6. zuul.d/