During DhcpAgent startup procedure all the following networks
initialization is actually perform twice:
* Killing old dnsmasq processes
* set and configure all TAP interfaces
* building all Dnsmasq config files (lease and host files)
* launching dnsmasq processes
What is done during the second iteration is just clean and redo
exactly the same another time! This is really inefficient and
increase dramatically DHCP startup time (near twice than needed).
Initialization process 'sync_state' method is called twice:
* one time during init_host()
* another time during _report_state()
sync_state() call must stay in init_host() due to bug #1420042.
sync_state() is always called during startup in init_host()
and will be periodically called by periodic_resync()
to do reconciliation.
Hence it can safely be removed from the run() method.
Change-Id: Id6433598d5c833d2e86be605089d42feee57c257
Closes-bug: #1651368
Closes-Bug: #1650611
f15851b989