Delete useless options in controller

[nayihz]

./bin/controller -h
Usage of ./bin/controller:
      --burst int              burst of query apiserver. (default 10)
      --enableLeaderElection   If EnableLeaderElection for controller.
      --incluster              If controller run incluster.
      --kubeConfig string      Kube Config path if not run in cluster.
      --kubeconfig string      Paths to a kubeconfig. Only required if out-of-cluster.
      --masterUrl string       Master Url if not run in cluster.
      --metricsAddr string     Metrics server bind listen address. (default ":8080")
      --probeAddr string       Probe endpoint bind  address. (default ":8081")
      --qps int                qps of query apiserver. (default 5)
      --workers int            workers of scheduler-plugin-controllers. (default 1)

There are some options which should be discarded after we migrate controller to ctrl runtime, such as enableLeaderElection/kubeConfig/ incluster.
Meanwhile we should also discard options which were never been used, such as workers.

/assign