Revert: Blueprint "bp/distributed-serialization"

Until upstream fixes bug [1], partially revert blueprint
implementation [2]:
- fuel-agent: no-op, we overwrite fuel_bootstrap_cli.yaml anyway;
- fuel-library: no-op, keep newly added port config in place;
- fuel-web: revert all blueprint related changes;

NOTE: When this blueprint becomes part of Fuel@OPNFV, we need to
      update our "fuel_bootstrap_cli.yaml".

[1] https://bugs.launchpad.net/fuel/+bug/1676197
[2] https://review.openstack.org/#/q/topic:bp/
    distributed-serialization+status:merged+branch:stable/newton

JIRA: FUEL-265

Change-Id: Icf392a3446e5c89c2592d1733bc1f3401b7d69ad
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>