Reference article : How to hide an entry in the Add/Remove Programs applet?
In Wix source files, set property ARPSYSTEMCOMPONENT = 1 would do this, for example:
<Product>
<PropertyId="ARPSYSTEMCOMPONENT">1</Property>
</Product>
Reference: https://www.mail-archive.com/wix-users@lists.sourceforge.net/msg15696.html
When you set ARPSYSTEMCOMPONENT you're telling Windows Installer, 'this is a
system component, don't show it in Add/Remove Programs'.