fn = (root, params) => {
  const { text = true, tspan = true, tref = true } = params;
  return {
    element: {
      enter: (node, parentNode) => {
        // Remove empty text element
        if (text && node.name === 'text' && node.children.length === 0) {
          detachNodeFromParent(node, parentNode);
        }
        // Remove empty tspan element
        if (tspan && node.name === 'tspan' && node.children.length === 0) {
          detachNodeFromParent(node, parentNode);
        }
        // Remove tref with empty xlink:href attribute
        if (
          tref &&
          node.name === 'tref' &&
          node.attributes['xlink:href'] == null
        ) {
          detachNodeFromParent(node, parentNode);
        }
      },
    },
  };
}
Remove empty Text elements.

@see https://www.w3.org/TR/SVG11/text.html

@example
Remove empty text element:
<text/>

Remove empty tspan element:
<tspan/>

Remove tref with empty xlink:href attribute:
<tref xlink:href=""/>

@author Kir Belevich

@type {import('../lib/types.js').Plugin<RemoveEmptyTextParams>}