Disable test: test_create_floatingip_with_normal_user
Disable test: test_create_floatingip_with_normal_user

This test fails gate, and doesn't test Dragonflow-specific
functionality.

Change-Id: I33a572ed4124ef458bfd6c24692a8d361344c8fa
Related-Bug: #1736952

openstack/dragonflow,openstack/dragonflow,openstack/dragonflow