Remove a redundant getdomainname() implementation.

lib/libc/ip/Makefile.inc

@@ -8,7 +8,6 @@ SRCS+=  \
 	connect.c \
 	dhcp_gettag.c \
 	dhcp_settag.c \
-	domainname.c \
 	ether_line.c \
 	ethera2n.c \
 	ethere2a.c \

lib/libc/ip/domainname.c

@@ -1,30 +0,0 @@
-/*
-domainname.c
-*/
-
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-
-int getdomainname(domain, size)
-char *domain;
-size_t size;
-{
-	FILE *domainfile;
-	char *line;
-
-	domainfile= fopen("/etc/domainname", "r");
-	if (!domainfile)
-	{
-		return -1;
-	}
-
-	line= fgets(domain, size, domainfile);
-	fclose(domainfile);
-	if (!line)
-		return -1;
-	line= strchr(domain, '\n');
-	if (line)
-		*line= '\0';
-	return 0;
-}