I'm not sure I need them. Looking at the usb relocation guide i see that the usb uses 5v lines. I am going to use a PMS-PD 2 and it needs to be commected to the 3,3v line. So those components should be uselessIf you look into the definitive Wii trimming guide, you can see that some of these components have 5VView attachment 21739
I would keep them just to be sure. You could test if they work or look into the compendium where they're connected to.
Edit: My guess would be that they are for for USB since they are pretty close to it. CMIIW