Disable cpu pinning & L3 HA features

Disable cpu pinning & L3 HA features

* CPU pinning: tests have no support for dedicated CPU policy, so
  enabled pinning causes general performance impact
  [https://docs.openstack.org/nova/pike/admin/cpu-topologies.html]
* L3 HA routers:
  - doesn't catch l3-agent failure, relies only on
    HA network state to spot failure
  - failover process only retains the state of network
    connections for instances with a floating IP address
  - incompatible with DVR mode

JIRA: FUEL-360
Change-Id: Ie0182bf953b9989729f89d705d9fee902d229e51
Signed-off-by: Michael Polenchuk <mpolenchuk@mirantis.com>
(cherry picked from commit ed7bb355c93af5c163d5ae7926012652021abf75)