WooCommerce - remove payment method from emails

gistfile1.txt

<?php // Do not include this if already open!

/**
 * Code goes in theme functions.php.
 */
add_filter( 'woocommerce_get_order_item_totals', 'custom_woocommerce_get_order_item_totals' );

function custom_woocommerce_get_order_item_totals( $totals ) {
  unset( $totals['payment_method'] );
  return $totals;
}

@Drugoy,
Here is an answer for you after 4 years. The text you mentioned can be updated from the payment gateway settings page.

@getmanzooronline, Thanks for the answer. But updating text is not the same as removing the item altogether.