title: WooCommerce: Change related products heading and remove/change <h2>
body: <p>I want to change the title text of the related products and remove the <code>&lt;h2&gt;</code> for SEO reasons.</p>
  
  <p>I found some answers to change the title text here: <a href="https://stackoverflow.com/q/45688753/1788961">Rename Related Products title in Woocommerce 3</a>
  But the code from there and the answer doens't work (anymore?).</p>
  
  <p>And there is an other problem. The heading uses the <code>&lt;h2&gt;</code> tag which I want to change also.</p>
  
  <p>I found the following code in the <code>related.php</code> template: </p>
  
  <pre><code>&lt;?php
  $heading = apply_filters( 'woocommerce_product_related_products_heading', __( 'Related products', 'woocommerce' ) );
  
  if ( $heading ) : ?&gt;
      &lt;h2&gt;&lt;?php echo esc_html( $heading ); ?&gt;&lt;/h2&gt;
  &lt;?php endif; ?&gt;
  </code></pre>
  
  <p>Is there any way to chage the complete output of <code>$heading</code> without changing the template file?</p>