staging: rtl8723bs: remove IP_FMT macro

Remove unnecessary macro for %pI4 and call it directly.

Signed-off-by: Ross Schmidt <ross.schm.dev@gmail.com>
Link: https://lore.kernel.org/r/20201105034754.12383-3-ross.schm.dev@gmail.com


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