open the file /apps/wiiflow/wiiflow.ini
In there under the [PLUGINS] section there an option that says
disable=no
change it to
disable=yes
that hide the emulator section
under the [GENERAL] section there's an option something like
hidechannels=no
again, change it to yes and the NAND part should go away
Alternatively, under the [GENERAL] section there's also an option something like
dpad_mode=no
that you can change to yes and when you point at the mode button where you usually press (A) to switch through modes you can also press up, down, left, and right on the d-pad to go straight to whichever mode you want so you wouldn't have to rotate through all of them at lease but the method I mentioned before should eliminate them completely anyway.
(I'm mostly sure about the exact name of those settings I mentioned before but just look for something similar to it. I can't promise I remembered the names exactly.)