staging: r8188eu: remove macros ODM_IC_11{N,AC}_SERIES

The macros ODM_IC_11N_SERIES and ODM_IC_11AC_SERIES are unused now.
Remove them.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210918181904.12000-12-straube.linux@gmail.com


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