diff --git a/teeth_agent/client.py b/teeth_agent/client.py
index 42443a31b..49739d23f 100644
--- a/teeth_agent/client.py
+++ b/teeth_agent/client.py
@@ -21,7 +21,6 @@ from twisted.application.service import MultiService
 from twisted.application.internet import TCPClient
 from twisted.internet.protocol import ReconnectingClientFactory
 from twisted.internet.defer import maybeDeferred
-from twisted.internet.defer import DeferredList
 from twisted.python.failure import Failure
 
 from teeth_agent.protocol import TeethAgentProtocol
</div><div class="naked_ctrl">
<form action="/index.cgi/speech" method="get" name="gate">
<p><a href="http://altstyle.alfasado.net">AltStyle</a> によって変換されたページ <a href="https://opendev.org/openstack/ironic-python-agent/commit/936a4c17e6a908a880d3bc0294115f37d734b031.diff">(-&gt;オリジナル)</a>
/ <label>アドレス: <input type="text" name="naked_post_url" value="https://opendev.org/openstack/ironic-python-agent/commit/936a4c17e6a908a880d3bc0294115f37d734b031.diff" size="22" /></label> <label>モード: <select name="naked_post_mode">
<option value="default">デフォルト</option>
<option value="speech" selected="selected">音声ブラウザ</option>
<option value="ruby">ルビ付き</option>
<option value="contrast">配色反転</option>
<option value="larger-text">文字拡大</option>
<option value="mobile">モバイル</option>
</select>
<input type="submit" value="表示" />
</p>
</form>
</div>