Disable Internal Antenna Permanently topic

I want to permanently disable my Samsung Galaxy S4's internal antenna. I know doing this seems a bit unorthodox but I have my reasons why I want to do so. I will be connecting an external antenna via the L1 port using a patch lead cable. No I don't want to use the internal antenna ever so I'm wondering how it can be disconnected; I don't want any responses asking me why I want this to be done I just want possible solutions. I was wondering if I could open the phone and somewhat remove the antenna or mess with the antenna contacts so it could stop working I'm not sure though so I need either a hardware or software solution.