Fix airgap check

salt/common/tools/sbin/so-common

@@ -88,19 +88,6 @@ add_interface_bond0() {
 	fi
 }
 
-check_airgap() {
-  # See if this is an airgap install
-  AIRGAP=$(cat /opt/so/saltstack/local/pillar/global.sls | grep airgap: | awk '{print $2}')
-  if [[ "$AIRGAP" == "True" ]]; then
-      is_airgap=0
-      UPDATE_DIR=/tmp/soagupdate/SecurityOnion
-      AGDOCKER=/tmp/soagupdate/docker
-      AGREPO=/tmp/soagupdate/Packages
-  else 
-      is_airgap=1
-  fi
-}
-
 check_container() {
 	docker ps | grep "$1:" > /dev/null 2>&1
 	return $?