Cleanup nginx conf #1559

Job	Run time
build-docker (internet.nl, docker/Dockerfile, app)	6m 53s
build-docker (unbound, docker/Dockerfile, unbound)	3m 48s
build-docker (linttest, docker/Dockerfile, linttest)	7m 6s
build-docker (test-runner, docker/test-runner.Dockerfile)	3m 57s
build-docker (webserver, docker/webserver.Dockerfile)	1m 42s
build-docker (grafana, docker/grafana.Dockerfile)	1m 29s
build-docker (util, docker/util.Dockerfile)	1m 34s
docs	1s
integration-test	7m 3s
development-environment-test	3m 37s
batch-integration-test	6m 15s
lint/check	2m 23s
test	5m 35s
	51m 23s

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