Fix render unnecessary custom-control-label-text on other components in ClayCheckbox

[matuzalemsteles]

In use cases like ClayCard when it is not necessary to pass $label it is rendered unnecessarily. Only by placing inside the {if} conditional so that they are not rendered in these use cases. What do you think?

{let $spanLabelClasses kind="text"}
	custom-control-label-text
	{if $hideLabel}
		{sp}sr-only
	{/if}
{/let}

<span class="{$spanLabelClasses}">{$label}</span>

[carloslancha]

Just started reviewing :)

Sent from GH.

[carloslancha]

LGTM!