nuke the v2.x to v3.x migration docs

docs/_includes/nav/docs.html

@@ -58,14 +58,6 @@
         </ul>
         {% endif %}
       </div>
-      <div class="bs-docs-toc-item{% if page.slug == "migration" %} active{% endif %}">
-        <a class="bs-docs-toc-link" href="../migration">Migrating to v3.x</a>
-        {% if page.slug == "migration" %}
-        <ul class="nav bs-docs-sidenav">
-          {% include nav/migration.html %}
-        </ul>
-        {% endif %}
-      </div>
     </nav>
   </div>
 </header>

docs/_includes/nav/getting-started.html

@@ -34,9 +34,6 @@
 <li>
   <a href="#disable-responsive">Disabling responsiveness</a>
 </li>
-<li>
-  <a href="#migration">Migrating from 2.x to 3.0</a>
-</li>
 <li>
   <a href="#support">Browser and device support</a>
   <ul class="nav">

docs/getting-started.html

@@ -12,13 +12,6 @@ lead: "An overview of Bootstrap, how to download and use, basic templates and ex
 {% include getting-started/examples.html %}
 {% include getting-started/community.html %}
 {% include getting-started/disabling-responsiveness.html %}
-
-<!-- Cross link to new migration page -->
-<div class="bs-callout bs-callout-info" id="migration">
-  <h4>Migrating from v2.x to v3.x</h4>
-  <p>Looking to migrate from an older version of Bootstrap to v3.x? Check out <a href="../migration">our migration guide</a>.</p>
-</div>
-
 {% include getting-started/browser-device-support.html %}
 {% include getting-started/third-party-support.html %}
 {% include getting-started/accessibility.html %}