Remove netcfg's unused options.

Only "netcfg" for a list of interfaces and "netcfg <interface> dhcp" still
seem to be used.

Change-Id: Iaf499c06b09ffe5e0925339b9cd6e502f3234a86
diff --git a/libnetutils/dhcpclient.c b/libnetutils/dhcpclient.c
index 700b02f..a05b7cb 100644
--- a/libnetutils/dhcpclient.c
+++ b/libnetutils/dhcpclient.c
@@ -353,28 +353,28 @@
 static int is_valid_reply(dhcp_msg *msg, dhcp_msg *reply, int sz)
 {
     if (sz < DHCP_MSG_FIXED_SIZE) {
-        if (verbose) ALOGD("netcfg: Wrong size %d != %d\n", sz, DHCP_MSG_FIXED_SIZE);
+        if (verbose) ALOGD("Wrong size %d != %d\n", sz, DHCP_MSG_FIXED_SIZE);
         return 0;
     }
     if (reply->op != OP_BOOTREPLY) {
-        if (verbose) ALOGD("netcfg: Wrong Op %d != %d\n", reply->op, OP_BOOTREPLY);
+        if (verbose) ALOGD("Wrong Op %d != %d\n", reply->op, OP_BOOTREPLY);
         return 0;
     }
     if (reply->xid != msg->xid) {
-        if (verbose) ALOGD("netcfg: Wrong Xid 0x%x != 0x%x\n", ntohl(reply->xid),
-                          ntohl(msg->xid));
+        if (verbose) ALOGD("Wrong Xid 0x%x != 0x%x\n", ntohl(reply->xid),
+                           ntohl(msg->xid));
         return 0;
     }
     if (reply->htype != msg->htype) {
-        if (verbose) ALOGD("netcfg: Wrong Htype %d != %d\n", reply->htype, msg->htype);
+        if (verbose) ALOGD("Wrong Htype %d != %d\n", reply->htype, msg->htype);
         return 0;
     }
     if (reply->hlen != msg->hlen) {
-        if (verbose) ALOGD("netcfg: Wrong Hlen %d != %d\n", reply->hlen, msg->hlen);
+        if (verbose) ALOGD("Wrong Hlen %d != %d\n", reply->hlen, msg->hlen);
         return 0;
     }
     if (memcmp(msg->chaddr, reply->chaddr, msg->hlen)) {
-        if (verbose) ALOGD("netcfg: Wrong chaddr %x != %x\n", *(reply->chaddr),*(msg->chaddr));
+        if (verbose) ALOGD("Wrong chaddr %x != %x\n", *(reply->chaddr),*(msg->chaddr));
         return 0;
     }
     return 1;
diff --git a/libnetutils/ifc_utils.c b/libnetutils/ifc_utils.c
index bfe7121..ab6c654 100644
--- a/libnetutils/ifc_utils.c
+++ b/libnetutils/ifc_utils.c
@@ -639,26 +639,6 @@
 #endif
 }
 
-/*
- * Removes the default route for the named interface.
- */
-int ifc_remove_default_route(const char *ifname)
-{
-    struct rtentry rt;
-    int result;
-
-    ifc_init();
-    memset(&rt, 0, sizeof(rt));
-    rt.rt_dev = (void *)ifname;
-    rt.rt_flags = RTF_UP|RTF_GATEWAY;
-    init_sockaddr_in(&rt.rt_dst, 0);
-    if ((result = ioctl(ifc_ctl_sock, SIOCDELRT, &rt)) < 0) {
-        ALOGD("failed to remove default route for %s: %s", ifname, strerror(errno));
-    }
-    ifc_close();
-    return result;
-}
-
 int
 ifc_configure(const char *ifname,
         in_addr_t address,