Fix autotest koeventpopupmenutest
* Deleted createEventFromEvent() because the event-specific menu no longer has a menu item that creates another event. Deleted createTodoFromTodo() for the same reason. * The other create* tests were failing because menu items no longer have object names. Switched to C-locale item text; since it is key to i18n, it should be stable. * Deleted * Deleted defaultMenuEventVisible() because the "is visible" tests are covered by other tests, and the "not visible" test is an implementation detail. Deleted defaultMenuTodoVisible() for the same reason.