Skip `if __name__ == '__main__'` in coverage
Skip `if __name__ == '__main__'` in coverage

It's not easy to test the entry point to our plugin, so skip that
line in UTs. Everything will break if this isn't working, so
assume that FV/e2e tests will catch issues here.

projectcalico/calico-kubernetes,caseydavenport/calico-kubernetes,alexhersh/calico-kubernetes,Symmetric/calico-kubernetes,caseydavenport/calico-kubernetes,projectcalico/calico-kubernetes,alexhersh/calico-kubernetes,Symmetric/calico-kubernetes