Remove Cast.ai logo from index page

Removed Cast.ai logo from the homepage.

Author: woop

infra/website/src/pages/index.astro

@@ -114,9 +114,6 @@ features = store.retrieve_online_documents(
           <div class="logo-item">
             <img src="/images/logos/seatgeek.svg" alt="SeatGeek" class="company-logo">
           </div>
-          <div class="logo-item">
-            <img src="/images/logos/castai.png" alt="Cast.ai" class="company-logo">
-          </div>
         </div>
       </div>
     </section>