Remove Yoast Metabox for Everyone Except Admins

wp-remove-yoast.php

<?php
// Removes the Yoast Metabox for Roles other then Admins
// Returns true if user has specific role
function check_user_role( $role, $user_id = null ) {
  if ( is_numeric( $user_id ) )
    $user = get_userdata( $user_id );
  else
    $user = wp_get_current_user();
  if ( empty( $user ) )
    return false;
  return in_array( $role, (array) $user->roles );
}

// Disable WordPress SEO meta box for all roles other than administrator and seo
function wpse_init(){
  if( !( check_user_role( 'seo' ) || check_user_role( 'administrator' )) ) {
    // Remove page analysis columns from post lists, also SEO status on post editor
    add_filter( 'wpseo_use_page_analysis', '__return_false' );
    // Remove Yoast meta boxes
    add_action( 'add_meta_boxes', 'disable_seo_metabox', 100000 );
  }
}
add_action('init', 'wpse_init');

function disable_seo_metabox() {
  remove_meta_box( 'wpseo_meta', 'post', 'normal' );
  remove_meta_box( 'wpseo_meta', 'page', 'normal' );
}