Remove Nexcloud from support providers

Page does not mention Prometheus.

Signed-off-by: Bryan Boreham <[email protected]>

Author: bboreham

content/support-training.html

@@ -114,13 +114,6 @@ <h2>Commercial support</h2>
               </a>
           </div>
 
-          <div class="col-md-3 col-sm-6 doc-content tc-col">
-            <a href="https://www.nexcloud.co.kr/" class="btn btn-training btn-default btn-large"
-              target="_blank">
-              <img src="../assets/commercial-support-logos/nexclipper.png" alt="NexClipper">
-            </a>
-          </div>
-
           <div class="col-md-3 col-sm-6 doc-content tc-col">
             <a href="https://www.novatec-gmbh.de/en/consulting/open-source-application-performance-management/" class="btn btn-training btn-default btn-large" target="_blank">
               <img src="../assets/commercial-support-logos/novatec.png" alt="Novatec Consulting GmbH">