Sharepoint 2013 OOTB Subsite Templates to be hide

Question

Hi 

I have to hide the OOTB subsite templates in Page Layouts and Site Templates in Site Settings Page and display only my customed templates (Example my own team and project sites templates only) should be displayed.
Is this can be done using Onet.xml? we r trying to avoid coding,any easy way of doing it?Please help me in this asap.

Thanks in Advance