Dropping 'Improving TorBirdy'

When I've spoken with Sukhbir he mentioned that he doesn't think there's enough
torbirdy tasks remaining to fill a summer. We can add this back in if he
changes his mind.

getinvolved/en/volunteer.wml

@@ -578,11 +578,6 @@ meetings around the world.</li>
     TorBirdy is Torbutton for Thunderbird and related Mozilla mail clients.
     </p>
 
-    <p>
-    <b>Project Ideas:</b><br />
-    <i><a href="#improveTorbirdy">Improving TorBirdy</a></i><br />
-    </p>
-
     <a id="project-obfsproxy"></a>
     <h3><a href="<page projects/obfsproxy>">Obfsproxy</a> (<a
     href="https://gitweb.torproject.org/obfsproxy.git">C codebase</a>, <a
@@ -1310,59 +1305,6 @@ meetings around the world.</li>
     </li>
     -->
 
-    <a id="improveTorbirdy"></a>
-    <li>
-    <b>Improving TorBirdy</b>
-    <br>
-    Effort Level: <i>High</i>
-    <br>
-    Skill Level: <i>Medium to High</i>
-    <br>
-    Likely Mentors: <i>Sukhbir, Jacob</i>
-    <p>
-    TorBirdy is Torbutton for Thunderbird, Icedove and related Mozilla mail
-    clients.
-    </p>
-    <p>
-    TorBirdy is under active development and is available from <a
-    href="https://trac.torproject.org/projects/tor/wiki/torbirdy">our wiki</a>
-    and <a
-    href="https://addons.mozilla.org/en-US/thunderbird/addon/torbirdy/">mozilla's
-    addons site</a>.
-    </p>
-
-    <p>
-    The goal of this project is to improve TorBirdy by:
-    </p>
-
-    <ul>
-      <li>
-        Writing a Thunderbird patch to plug known leaks. We have already <a
-        href="https://bugzilla.mozilla.org/show_bug.cgi?id=776397">submitted a
-        patch to Thunderbird</a> but we anticipate there will be much more work
-        required before it is accepted, possibly involving rewriting the entire
-        patch; this appears trivial, but it is not, as we are proposing a
-        completely new privacy-safe message-ID header generation algorithm for
-        Thunderbird.
-      </li>
-      <li>
-        Implementing a JavaScript HTTP proxy (see the <a
-        href="https://trac.torproject.org/projects/tor/ticket/6958">ticket</a>)
-      </li>
-      <li>
-        Auditing TorBirdy for leaks and for use with other add-ons (as an
-        example see its <a
-        href="https://trac.torproject.org/projects/tor/ticket/6319">ticket</a>)
-      </li>
-    </ul>
-
-    <p>
-    A student undertaking this project should have some C++ and JavaScript
-    development experience. Previous experience with Firefox/Thunderbird
-    extension development is a plus, but not required.
-    </p>
-    </li>
-
     <!--
     <a id="user-space-transport"></a>
     <li>