Version label prevents normal helm upgrades

[LincolnBryant]

The OSG folks are having issues doing upgrades using the Helm operator for Flux - specifically it seems to be a problem with having the Chart version in the label of our applications.

The errors are something like this:

ts=2021-04-26T22:48:56.5489564Z caller=release.go:357 component=release release=osgdev-chtc-itb-slurm-ce targetNamespace=osgdev resource=osgdev:helmrelease/chtc-itb-slurm-ce helmVersion=v3 error="upgrade failed: cannot patch \"osg-hosted-ce-chtc-itb-slurm\" with kind Deployment: Deployment.apps \"osg-hosted-ce-chtc-itb-slurm\" is invalid: spec.selector: Invalid value: v1.LabelSelector{MatchLabels:map[string]string{\"app\":\"chtc-itb-slurm\", \"chart\":\"osg-hosted-ce-3.8.2\", \"instance\":\"chtc-itb-slurm\", \"release\":\"osgdev-chtc-itb-slurm-ce\"}, MatchExpressions:[]v1.LabelSelectorRequirement(nil)}: field is immutable" action=upgrade

I think Helm cannot upgrade because we have the Chart version baked into the chart. Updating the Chart changes the value and breaks the selector, as I understand it.

Can we remove it?