ONE-3: Delete dst route when src fib is empty
ONE-3: Delete dst route when src fib is empty

Properly check that src fib is empty.

Change-Id: I4072169027a404cad66eaaa8450f7c18f1fa8073
Signed-off-by: Florin Coras <c9715e5cdf0718c2e9b10678757dfb027875eba2@cisco.com>

milanlenco/vpp,milanlenco/vpp,vpp-dev/vpp,muharif/vpp,GabrielGanne/vpp-flowtable,FDio/vpp,FDio/vpp,chrisy/vpp,chrisy/vpp,chrisy/vpp,vpp-dev/vpp,FDio/vpp,muharif/vpp,vpp-dev/vpp,GabrielGanne/vpp-flowtable,chrisy/vpp,muharif/vpp,chrisy/vpp,FDio/vpp,vpp-dev/vpp,vpp-dev/vpp,vpp-dev/vpp,FDio/vpp,chrisy/vpp,GabrielGanne/vpp-flowtable,muharif/vpp,chrisy/vpp,milanlenco/vpp,chrisy/vpp,vpp-dev/vpp,GabrielGanne/vpp-flowtable,muharif/vpp,muharif/vpp,FDio/vpp,FDio/vpp,milanlenco/vpp,milanlenco/vpp,GabrielGanne/vpp-flowtable,GabrielGanne/vpp-flowtable,milanlenco/vpp,FDio/vpp