dirinboz: remove unuse config
dirinboz: remove unuse config

This patch remove unuse config on dirinboz:
CONFIG_IO_EXPANDER_PCAL6408
CONFIG_USB_MUX_PS8740

BUG=none
BRANCH=zork
TEST=make BOARD=dirinboz

Signed-off-by: Zick Wei <3d0b14a1e83601e71d11cd2c38ee93ff1dbbc737@quanta.corp-partner.google.com>
Change-Id: I6cbbb20b4b43c860206828943b9376959b0e1cad
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2573659
Reviewed-by: Denis Brockus <6b21e8190fb5e373363fb95271367073a16474ef@chromium.org>
Commit-Queue: Denis Brockus <6b21e8190fb5e373363fb95271367073a16474ef@chromium.org>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec