
1. Sync sphinx dependency with global requirements. It caps python 2 since sphinx 2.0 no longer supports Python 2.7. 2. Remove unncessary "==" Change-Id: I1d321e17470216b76fca84f21896bc1457a6a92a
1. Sync sphinx dependency with global requirements. It caps python 2 since sphinx 2.0 no longer supports Python 2.7. 2. Remove unncessary "==" Change-Id: I1d321e17470216b76fca84f21896bc1457a6a92a