How to Hide Better Find and Replace Admin Menus

function plt_hide_real_time_auto_find_and_replace_menus() {
	//Hide "Find & Replace".
	remove_menu_page('real-time-auto-find-and-replace/real-time-auto-find-and-replace.php');
	//Hide "Find & Replace → Add New Rule".
	remove_submenu_page('real-time-auto-find-and-replace/real-time-auto-find-and-replace.php', 'cs-add-replacement-rule');
	//Hide "Find & Replace → All Replacement Rules".
	remove_submenu_page('real-time-auto-find-and-replace/real-time-auto-find-and-replace.php', 'cs-all-masking-rules');
	//Hide "Find & Replace → Replace in Database".
	remove_submenu_page('real-time-auto-find-and-replace/real-time-auto-find-and-replace.php', 'cs-replace-in-database');
	//Hide "Find & Replace → Restore in Database".
	remove_submenu_page('real-time-auto-find-and-replace/real-time-auto-find-and-replace.php', 'cs-bfar-restore-database-pro');
	//Hide "Find & Replace → Go Pro".
	remove_submenu_page('real-time-auto-find-and-replace/real-time-auto-find-and-replace.php', 'cs-bfar-go-pro');
}

add_action('admin_menu', 'plt_hide_real_time_auto_find_and_replace_menus', 26);
Where do I put this code?