staging: r8188eu: remove code to set led1 registers

This driver uses only led0. Remove the register settings to switch led1
on and off.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20211207210537.23382-3-martin@kaiser.cx


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>