Revert "Adjusted release_notes_admin.html" (wrong branch)

This reverts commit dc06722821.

java/com.sap.sailing.www/release_notes_admin.html

@@ -35,8 +35,6 @@
                             Previously it was only possible to import a new event structure.</li>
                         <li>The Expedition log file import now prefers "GPS Time" for time stamping over "Utc" and over other date / time formats, making it
                             more consistent with the Expedition live connector which uses column 146 for time stamping which is GPS Time.</li>
-						<li>Two dimensional metrics can now be displayed by using a scatter plot presenter within the data mining tool. 
-							Select a metric that returns a pair of numbers and choose "Average" or "Identity" as an aggregator.</li>
                     </ul>
 
                     <h2 class="articleSubheadline">March 2018</h2>