Remove extra debug logging for mount command.
Remove extra debug logging for mount command.

warmchang/minikube,kubernetes/minikube,kubernetes/minikube,warmchang/minikube,dlorenc/minikube,kubernetes/minikube,dalehamel/minikube,dalehamel/minikube,dlorenc/minikube,kubernetes/minikube,dalehamel/minikube,warmchang/minikube,dlorenc/minikube,warmchang/minikube,dlorenc/minikube,dlorenc/minikube,warmchang/minikube,kubernetes/minikube,kubernetes/minikube,dlorenc/minikube,dlorenc/minikube,dlorenc/minikube,warmchang/minikube,warmchang/minikube,kubernetes/minikube