Revert strainer gate job work

Includes:

1- Revert "Inject BUNDLE_PATH into cookbook builds."

This reverts commit 94a023f644966a324973813572c04835488f71e8.

2- Revert "Use strainer for cookbook gate jobs"

This reverts commit 174f7be6f1b7dc01e573ee79515119eba2c25815.

Fix bug 1190095

Change-Id: I691afe28ef691238c8b894a693641a711945d6f2
Reviewed-on: https://review.openstack.org/32659
Reviewed-by: Jay Pipes <jaypipes@gmail.com>
Reviewed-by: John Dewey <john@dewey.ws>
Reviewed-by: Jeremy Stanley <fungi@yuggoth.org>
Approved: Clark Boylan <clark.boylan@gmail.com>
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Tested-by: Jenkins