Remove neutron CLI tests

These have been converted into a neutron function job [1].

[1] a03acdc5099ede21a7d66f8ebb26c6ca11543c13
Depends-on: Icaaaa094c1637f5d0e5296491d349a282fadc2cc
Related-Bug: #1429289

Change-Id: Ib110887862de559a8372fdd43aab837e47c48178
3 files changed