This reverts commit 1b5f9f8203.
On IRC I we decided that we agreed no migrations should be placement
specific, we should just use the API table migrations to generate the
schema for both DBs.
There is also a separate debate around the alias for the aggregates
table, but that is not really a reason to revert, its just things in
here that will need rework.
Change-Id: I275945aee9d9be8e35d6ddc05515df39d559457a