Hi @dnavarrojr
I simply add this wordpress action to functions.php:
function my_remove_meta_boxes() {
remove_meta_box( 'branchdiv', 'workshop', 'side' );
remove_meta_box( 'tagsdiv-workshop_person', 'workshop', 'side' );
// etc..
}
add_action( 'admin_menu' , 'my_remove_meta_boxes' );
branchdiv is DOM id of meta box (just browse DOM)
workshop id my custom post type name (can by post, page etc…)