DelMenuItem
DelMenuItem Delete an item from a menu [128K ROM]
#include <Menus.h> Menu Manager
void DelMenuItem(theMenu, itemID );
MenuHandle theMenu ; handle of menu containing item to delete
short itemID ; ID of and item in theMenu
This lets you delete an item from a menu.
theMenu is the handle of a menu obtained via NewMenu or GetMenu. It
leads to a variable-length MenuInfo structure.
itemID specifies which item to delete.
Returns: none

Notes: InsMenuItem and DelMenuItem are available for systems having the
128K or later versions of the ROMs.
This re numbers (decrements) the IDs of all items having IDs higher than
theItem.
In most cases, it is better to use DisableItem, that dims the item text and
makes it non-selectable without actually removing the text from the menu.
DelMenuItem is intended for use in manipulating menus that change,
such as a list of open windows.