Remove lower-constraints job on stable branches
Remove lower-constraints job on stable branches

It is preventing us from merging patches. Remove until it can be fixed.

Change-Id: Id9d4ef57e2cdbb727470120eced1acdc53617372
(cherry picked from commit e0bd740e9e01764aac06ba28b4a7d856a68b4145)

ChameleonCloud/blazar,ChameleonCloud/blazar