Revert "Checks if requirements overlap between head and branch reqs"

This reverts commit a57bd21836a7441a626c46098b25c4a9c3920b1a.

Partial-Bug: #1326504

Change-Id: I2131cb09464cc7976df422974baa3358db9360b1
Merge "Revert "Checks if requirements overlap between head and branch reqs""