Remove duplicate app label from helm chart

[cyanidium]

What this PR does / why we need it:
Only one app label should be set on kubernetes resources. fluxcd will refuse to install the chart with duplicate app labels. This removes a hardcoded app label and leaves the label based on the chart name in place.

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #591

[mlguerrero12]

I see that the app is defined below in selectorLabels, and the value is Chart.name, which is whereabouts-chart. I'm wondering if we should change this to just whereabouts instead. It’s just a cosmetic change.

[cyanidium]

It is unusual to have "chart" in the app name, yes.

[mlguerrero12]

Let's tackle that in another pr

[coveralls]

Pull Request Test Coverage Report for Build 14209089615

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

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Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 51.575%

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Totals
Change from base Build 13965567508:	0.0%
Covered Lines:	1965
Relevant Lines:	3810

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💛 - Coveralls

[mlguerrero12]

LGTM

[dhess]

Thanks. Can we get a release for this fix? Version 0.9.0 of the Helm chart is not useable (with Flux, at least) without it.

[mlguerrero12]

@dhess, done, v0.9.1