Retire dec41 from sysadmins

Author: rsa33

committee.html

@@ -271,10 +271,6 @@ <h4 class="card-title">System administrators</h4>
               <td>Edwin Bahrami Balani</td>
               <td>2017</td>
             </tr>
-            <tr>
-              <td>Dexter Chua</td>
-              <td>2015</td>
-            </tr>
             <tr>
               <td>Richard Allitt</td>
               <td>2014</td>
@@ -340,6 +336,10 @@ <h4 class="card-title">Previous sysadmins</h4>
               <td>Sam Sully</td>
               <td>2018-2020</td>
             </tr>
+            <tr>
+              <td>Dexter Chua</td>
+              <td>2015-2024</td>
+            </tr>
             <tr>
               <td>Matthew Ireland</td>
               <td>2015-2020</td>