staging: r8188eu: remove IS_1T1R, IS_1T2R, IS_2T2R macros

In this driver RFType is RF_TYPE_1T1R, so only the macro IS_1T1R
returns true. Remove the macros and adjust related code accordingly.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210917080615.25819-2-straube.linux@gmail.com


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