Group revert of the following commits for design docs:

ce470e17
8874ab04
bdd8d0fa
6443ca4c
5ac5a324
1edd4ae5
be13fa0b
6a681afd
353474c0
2b1584c1

Had to revert these because they're not ready to be published.

Change-Id: I704cf0df1db9aa159295bdf78e97cef9605addc6