Revert "syncNetworkUtil in kubelet and fix loadbalancerSourceRange on GCE"

hack/verify-flags/known-flags.txt

@@ -230,7 +230,6 @@ insecure-port
 insecure-skip-tls-verify
 instance-metadata
 instance-name-prefix
-iptables-drop-bit
 iptables-masquerade-bit
 iptables-sync-period
 ir-data-source
@@ -289,7 +288,6 @@ lock-file
 log-flush-frequency
 long-running-request-regexp
 low-diskspace-threshold-mb
-make-iptables-util-chains
 make-symlinks
 manifest-url
 manifest-url-header