Fix error in Version Features page

Duplicate entry for {$TEXTBLOCK} directive removed.

Author: delphidabbler

notes/version-features.html

@@ -123,10 +123,6 @@ <h1>Delphi Version Features</h1>
                     <td><code>{$POINTERMATH}</code> directive</td>
                     <td>Delphi 2009</td>
                 </tr>
-                <tr>
-                    <td><code>{$TEXTBLOCK}</code> directive to determine how line breaks are treated in multiline strings.</td>
-                    <td>Delphi 12</td>
-                </tr>
                 <tr>
                     <td><code>{$METHODINFO}</code> compiler directive<a href="#footnote-6" title="Source: StackOverflow"><sup>6</sup></a></td>
                     <td>Delphi 2006</td>