Avatar: extraneous `console.warn` about missing `statusLabel`

[tgohn]

Expectations

No console.warn about missing statusLabel is logged when using <Avatar /> component without status or badge props.

Consumer of <Avatar /> should not need to add statusLabel props if they do not render avatar's badge or status icons.

Reality

When using a vanilla <Avatar /> component without status or badge props, there is a extraneous console.warn

Warning: you did not provide a customized/translated `statusLabel` text value for <Avatar>. Zendesk Garden is rendering <Avatar statusLabel="status"> by default. 

Steps to Reproduce

1. Visit this codesandbox, which is the first example of <Avatar/> in the guide
2. console.warn was printed out, similar to screenshot above

Fine Print

• Component: Avatar
• Version: v8.64.0
• Browsers: all

[tgohn]

There is a relevant discussion here prior.

[geotrev]

Thanks for the heads up @tgohn - this should be relatively straightforward. Will have a PR up shortly.