Fix error on Delphi Version Features page

1st line under h1 heading had been duplicated

Author: delphidabbler

notes/version-features.html

@@ -6,7 +6,6 @@
 
     <h1>Delphi Version Features</h1>
 
-    <p>This page contains an incomplete list of which features were introduced in which versions of Delphi<a href="#footnote-1"><sup>1</sup></a>.</p>
     <p>This page contains an incomplete list of which features were introduced in which versions of Delphi<a href="#footnote-1"><sup>1</sup></a>.</p>
 
     <p>If you have any additions or corrections please <a href="https://github.com/delphidabbler/delphidabbler.github.io/issues">create an issue</a> on GitHub (<small>GitHub account required</small>).</p>