Remove external attribute from the Provider Network

Co-Authored-By: Sridhar Gaddam <sridhar.gaddam@enovance.com>

Related-Bug: #1284718
Change-Id: Iad2f051a2b7b0a324dff4e716b8d2469a4f20895
diff --git a/lib/neutron b/lib/neutron
index e918286..799cf4a 100644
--- a/lib/neutron
+++ b/lib/neutron
@@ -401,7 +401,7 @@
     elif is_provider_network; then
         die_if_not_set $LINENO SEGMENTATION_ID "A SEGMENTATION_ID is required to use provider networking"
         die_if_not_set $LINENO PROVIDER_NETWORK_TYPE "You must specifiy the PROVIDER_NETWORK_TYPE"
-        NET_ID=$(neutron net-create $PHYSICAL_NETWORK --tenant_id $TENANT_ID --provider:network_type $PROVIDER_NETWORK_TYPE --provider:physical_network "$PHYSICAL_NETWORK" --provider:segmentation_id "$SEGMENTATION_ID" --router:external=true --shared | grep ' id ' | get_field 2)
+        NET_ID=$(neutron net-create $PHYSICAL_NETWORK --tenant_id $TENANT_ID --provider:network_type $PROVIDER_NETWORK_TYPE --provider:physical_network "$PHYSICAL_NETWORK" --provider:segmentation_id "$SEGMENTATION_ID" --shared | grep ' id ' | get_field 2)
         SUBNET_ID=$(neutron subnet-create --tenant_id $TENANT_ID --ip_version 4 ${ALLOCATION_POOL:+--allocation-pool $ALLOCATION_POOL} --name $PROVIDER_SUBNET_NAME $NET_ID $FIXED_RANGE | grep ' id ' | get_field 2)
         SUBNET_V6_ID=$(neutron subnet-create --tenant_id $TENANT_ID --ip_version 6 --ipv6-address-mode slaac --gateway $V6_NETWORK_GATEWAY --name $PROVIDER_SUBNET_NAME_V6 $NET_ID $FIXED_RANGE_V6 | grep 'id' | get_field 2)
         sudo ip link set $OVS_PHYSICAL_BRIDGE up