Remove Customizr meta boxes from custom post types

custom_post_types_no_customizr_mb.php

//remove customizr metaboxes from custom post types edit screen
add_action( 'add_meta_boxes', 'remove_customizr_metaboxes', 20 );
function remove_customizr_metaboxes() {
  //array of custom post types  
  $custom_post_types = get_post_types( array( '_builtin' => false ) );
  $current_post_type = get_post_type();
  if ( in_array( $current_post_type, $custom_post_types ) ) {
    remove_meta_box('layout_sectionid', $current_post_type, 'normal' );
    remove_meta_box('slider_sectionid', $current_post_type, 'normal' );
  }
}