chore: update sponsors

Author: kamilmysliwiec

index.html

@@ -358,9 +358,6 @@ <h5>Gold sponsors</h5>
           <a href="https://nx.dev" target="_blank">
             <img src="img/nx-logo.png" class="gold-logo gold-logo--slim" />
           </a>
-          <a href="https://amplication.com/" target="_blank">
-            <img src="img/amplication-logo.svg" class="gold-logo" />
-          </a>
           <a href="https://intrinsic.ventures/" target="_blank" rel="nofollow">
             <img src="img/intrinisic-logo.png" class="gold-logo gold-logo--wide" />
           </a>