Remove ActiveX example (#4008)

ActiveX is an outdated technology on the web.

Author: momdo

techniques/general/G10.html

@@ -31,12 +31,6 @@
                 Using the Java swing classes they are able to create an interface
                 component that exposes its name and role, is able to be set by AT
                 and alerts AT to any updates.</li>
-         <li>A Web page uses an original ActiveX control that is
-                written in the C++ programming language. The control is written to
-                explicitly support the Microsoft Active Accessibility (MSAA) API to
-                expose information about accept commands. The control then interacts
-                directly with assistive technology running the user agent on systems
-                that support MSAA.</li>
       </ul>
    </section><section id="tests"><h2>Tests</h2>
       <section class="procedure"><h3>Procedure</h3>