diff --git a/app/src/main/java/org/ntlab/irisclient/models/Room.java b/app/src/main/java/org/ntlab/irisclient/models/Room.java
index 41f0337..ccd7b4a 100644
--- a/app/src/main/java/org/ntlab/irisclient/models/Room.java
+++ b/app/src/main/java/org/ntlab/irisclient/models/Room.java
@@ -1,7 +1,5 @@
 package org.ntlab.irisclient.models;
 
-import android.app.Application;
-import android.content.SharedPreferences;
 
 import java.util.ArrayList;
 import java.util.HashMap;
@@ -80,15 +78,5 @@
     }
 
     //--------------------------------------------------------------
-    //その他メソッド
-    public void deleteMember(String nick) {
-        members.remove(nick);
-    }
-
-    public void addMember(String nick) {
-        Member m=new Member(nick);
-        m.setNickname(nick);
-        members.put(nick,m);
-    }
 
 }