Problem: if_perl: contains references to legacy if_perlsfio.{c,pro} and
USE_SFIO
Solution: Remove those references (Hirohito Higashi)
fixes: #18496
closes: #18500
Signed-off-by: Hirohito Higashi <h.east.727@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>