- as per the bug #1704129, the plug/unplug is moved to a
separate os-vif plugin
- IVS's methods have also been moved to a separate package
called os-vif-bigswitch [1]
- hence removing all dangling calls from here
[1] https://github.com/bigswitch/os-vif-bigswitch
Partial-Bug: #1704129
Change-Id: Icf948f6ee1c0da2327fb5eac61fec6e89ac30531