staging: r8188eu: remove ODM_DynamicPrimaryCCA_DupRTS()

Function ODM_DynamicPrimaryCCA_DupRTS() is unused, remove it.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210827094144.13290-4-straube.linux@gmail.com


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