makedef.pl: Remove nonsensical comment

The 'o' flag requires a Perl_prefix, so shouldn't skip it.  Perhaps it
was a typo, meant to be the 'O' flag.  But that flag now also requires
the p flags, so also a Perl_prefix.

Author: khwilliamson

makedef.pl

@@ -813,7 +813,6 @@ sub readvar {
 	    # within the block, as the *first* definition may have flags which
 	    # mean "don't export"
 	    next if $seen{$func}++;
-	    # Should we also skip adding the Perl_ prefix if $flags =~ /o/ ?
 	    $func = "Perl_$func" if ($flags =~ /[psX]/ && $func !~ /^Perl_/);
 	    ++$export{$func} unless exists $skip{$func};
 	}