This commit removes 'del-port' commands in neutron ovs
agent init script. Since, 'add-bond' command allows
modification of the existing options, the commands
being removed are not required. This also allows to
avoid disruptions in ovs caused by deleting ports on
restart.
Change-Id: I7201b87da7b20e1ca8efedf5d86a23123ccfa150
d2deb2b2dc