Revert "[ONOS-7756] Run onos-1.12 and 1.13 tests with OnosSystemTest 1.13 branch"

This reverts commit fc5cce1cb8abee2850a8cfea942d785fe08e1772.

Change-Id: I427c18dc9feeab3916b5d73d4a9b4c28e6c9d4f3
1 file changed