remove support for voiced users

--HG--
branch : nmdc-ircfrontend

typedefs.go

@@ -53,28 +53,22 @@ type Channel struct {
 
 type ClientMode struct {
 	operator bool //Channel operator
-	voice    bool //Has voice
 }
 
 func (m *ClientMode) Prefix() string {
 	if m.operator {
 		return "@"
-	} else if m.voice {
-		return "+"
 	} else {
 		return ""
 	}
 }
 
 func (m *ClientMode) String() string {
-	modeStr := ""
 	if m.operator {
-		modeStr += "o"
+		return "o"
+	} else {
+		return ""
 	}
-	if m.voice {
-		modeStr += "v"
-	}
-	return modeStr
 }
 
 type signalCode int