Update affix.tmpl.partial

Author: egil

docs/site/templates/bunit/partials/affix.tmpl.partial

@@ -4,12 +4,8 @@
   <div class="sideaffix">
     <div class="sponsor-highlight">
       <a href="https://www.telerik.com/campaigns/blazor/free-trial-1?utm_source=egilhansen&utm_medium=cpm&utm_campaign=blazor-trial-bunit-sponsored-message">
-        <img width="200" src="/sponsors/progress-blazor-300x250.png" alt="Telerik UI for Blazor – Get 40+ native Blazor UI components to build high-performing web apps. Give it a try" />
-      </a>
-      <p>
-        <i>Telerik UI for Blazor – Get 50+ native Blazor UI components to build high-performing web apps. 
-        <a href="https://www.telerik.com/campaigns/blazor/free-trial-1?utm_source=egilhansen&utm_medium=cpm&utm_campaign=blazor-trial-bunit-sponsored-message">Give it a try</a>.</i>
-      </p>
+        <img width="200" src="/sponsors/telerik-ad.svg" alt="Telerik UI for Blazor – Get 40+ native Blazor UI components to build high-performing web apps. Give it a try" />
+      </a>      
     </div>
     <div class="supported">
       <a href="https://www.packtpub.com/" title="Packt">