Remove the 20 second delay before bringing up the network
interface. This was done so that the network interface has
feature parity with Centos 7, but ifupdown detects nelink
differently compared to Centos 7. Removing the delay
results in a significant speed up.
In Debian, the network cable test is run by
/etc/network/if-up.d/00check-network-cable script.
Story: 2009221
Task: 45758
Test Plan
PASS Build platform-kickstarts package
PASS Build ISO
PASS Run bootstap/unlock
PASS Check /etc/network/interface.d/ifcfg-* if 'sleep 20'
is still present.
Signed-off-by: Charles Short <charles.short@windriver.com>
Change-Id: I0d7a6387cb42a0cb1af62fa49d6790b641c78b75