Only specify values that override default in Marketplace Deployer
The following discussion from https://gitlab.com/charts/deploy-image-helm-base/merge_requests/48 should be addressed:
- [ ] @WarheadsSE started a [discussion](https://gitlab.com/charts/deploy-image-helm-base/merge_requests/48#note_153380533):
> We _should_ not need anything here that is not overridden. The sub-charts `global` definition should end up merged with this.
>
> I emphasize "_should_", because, you know, Helm.
issue