Removing redundancy with WAI-ARIA in HTML

templates/footer.php

@@ -1,4 +1,4 @@
-<footer class="content-info" role="contentinfo">
+<footer class="content-info">
   <div class="container">
     <?php dynamic_sidebar('sidebar-footer'); ?>
   </div>

templates/header.php

@@ -1,7 +1,7 @@
-<header class="banner" role="banner">
+<header class="banner">
   <div class="container">
     <a class="brand" href="<?= esc_url(home_url('/')); ?>"><?php bloginfo('name'); ?></a>
-    <nav role="navigation">
+    <nav class="nav-primary">
       <?php
       if (has_nav_menu('primary_navigation')) :
         wp_nav_menu(['theme_location' => 'primary_navigation', 'menu_class' => 'nav']);