staging: r8188eu: remove macro PHY_SetRFReg

The macro PHY_SetRFReg just re-defines rtl8188e_PHY_SetRFReg().
Call rtl8188e_PHY_SetRFReg() directly and remove the macro.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20211205171342.20551-4-straube.linux@gmail.com


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