[core] fix(Tag): remove aria-labelledby attribute

[bvandercar-vt]

Changes proposed in this pull request:

aria-labelledby should only apply when a role is passed-- should not be on the Tag because the Tag is just a span and has no role prop

[adidahiya]

aria-labelledby should only apply when a role is passed

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[bvandercar-vt]

aria-labelledby should only apply when a role is passed

documentation link for this?

we are now failing the aXe aria-allowed-attr rule because we are applying an aria-labelledby prop to a span element. https://accessibilityinsights.io/info-examples/web/aria-allowed-attr/

If this span were to have a different role assigned, this would be allowed, but as of now, the Tag span is just a span.

[adidahiya]

I couldn't find any role which is suitable for all/any Tags in general, so I guess it's better to remove this attribute if we can't set role ourselves.