I created an custom form in Outlook 2013 named as "Service Request" and then it was published. Now to access the custom form a menu option is available under "New Items".
New Items---->Custom Form----->Service Request
I know the way to delete this menu item manually, by following the way
File--->Options--->Advanced---->Developer--->Custom Form--->Form Pattern
But my requirement is, need to delete the menu item programmatically using OOM in Outlook 2013.