Revert "Reduce hpcloud-b1 and b2 usage to 0"

The associated routers have been moved to new hosts.

This reverts commit c95130fd03db1e492adb2956844cfab78b3035cc.

Change-Id: Iad09dd9695e820bf04f155912a47271b197f80da
Merge "Revert "Reduce hpcloud-b1 and b2 usage to 0""