Remove WPMOLY 2.0 Headbox tabs. Place this at the end of your theme's functions.php file.

gistfile1.php

function wpmoly_remove_headbox_tabs( $tabs ) {

	unset( $tabs['meta'], $tabs['details'] );

	return $tabs;
}
add_filter( 'wpmoly_filter_headbox_menu_link', 'wpmoly_remove_headbox_tabs', 10, 1 );
add_filter( 'wpmoly_filter_headbox_menu_tabs', 'wpmoly_remove_headbox_tabs', 10, 1 );