Disable gzip compression in core control plane components

On local networks (such as the typical connection path between
control plane components) gzip compression increases CPU use and
end to end p99 latency rather than decreasing it. Disable compression
within the control plane components like a 1.15 cluster would be
configured.

cmd/kube-controller-manager/app/options/options.go

@@ -391,6 +391,7 @@ func (s KubeControllerManagerOptions) Config(allControllers []string, disabledBy
 	if err != nil {
 		return nil, err
 	}
+	kubeconfig.DisableCompression = true
 	kubeconfig.ContentConfig.ContentType = s.Generic.ClientConnection.ContentType
 	kubeconfig.QPS = s.Generic.ClientConnection.QPS
 	kubeconfig.Burst = int(s.Generic.ClientConnection.Burst)