netdata/packaging: Do not deliver edit-config as part of the distribution tarball (#6507)

As part of #6165, we faced an issue with mac OS installation where edit-config file was havint the wrong variables setup. After deep investigation on the way Formulae was building netdata, we realized that generated edit-config was delivered together with the generated edit-conf, thus resulting on not re-creating it with the right variables. So the fix here is to not deliver edit-config with the distribution tarball, so that it gets generated as it should