staging: r8188eu: HW_VAR_MEDIA_STATUS1 is never set

The HW_VAR_MEDIA_STATUS1 hal variable is never set. Remove its define
and the code to set it.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220108124959.313215-11-martin@kaiser.cx


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