Move handling of -ice option into main.

Rather than having it happen as a side effect of flag parsing.

Having it happen as a side effect of flag parsing caused log messages
related to handling the option (e.g. "IceServerList:") to always go to
stderr, despite the presence of a -log option. This is because the
requested log file had not been opened yet.

client/util.go

@@ -1,9 +1,7 @@
 package main
 
 import (
-	"fmt"
 	"log"
-	"strings"
 	"time"
 
 	"github.com/keroserene/go-webrtc"
@@ -19,17 +17,6 @@ func (i *IceServerList) String() string {
 	return fmt.Sprint(*i)
 }
 
-func (i *IceServerList) Set(s string) error {
-	log.Println("IceServerList:")
-	for _, server := range strings.Split(s, ",") {
-		// TODO: STUN / TURN url format validation?
-		log.Println(server)
-		option := webrtc.OptionIceServer(server)
-		*i = append(*i, option)
-	}
-	return nil
-}
-
 type BytesLogger interface {
 	Log()
 	AddOutbound(int)