Fix error with docker-for-desktop

[caulagi]

The kubernetes that we get using docker-for-desktop provides a loadbalancer when we specify it in yaml. So we don't need metallb on OSX (Mac) when the kube context is docker-for-desktop or docker-desktop.

Currently there is an error at the end of skaffold run when using docker-for-desktop cluster. We need to fix this (the setup works inspite of the error, but I guess it is confusing to the user)