removed sfc_encap_mode config option
removed sfc_encap_mode config option

Encapsulation type is supposed to be configured
by chain parameter `correlation`

Change-Id: I415ccb25f1acb2e230d35107f24d8dae36eeeb4c
Signed-off-by: Pavel Gluschak <bd08a46cada2aae17362152cfab6ccdf052e1d15@gmail.com>
Closes-Bug: #1602890

openstack/networking-sfc,openstack/networking-sfc