Remove duplicate communnity and participants (#285)

### Description

It seems that when we merged try-my valkey we had a conflict where we
duplicated some banner fields. This is just removing them.

<img width="955" alt="image"
src="https://github.com/user-attachments/assets/b2b19c3f-bb19-4db0-8374-c8505c04329e"
/>

 
### Issues Resolved

No

### Check List
- [X] Commits are signed per the DCO using `--signoff`

By submitting this pull request, I confirm that my contribution is made
under the terms of the BSD-3-Clause License.

Signed-off-by: Madelyn Olson <[email protected]>

Author: madolson

templates/default.html

@@ -37,8 +37,6 @@
         <a role="menuitem" href="/community/">Community</a>
         <a role="menuitem" href="/participants/">Participants</a>
         <a role="menuitem" href="/try-valkey/">Try Valkey</a>
-        <a role="menuitem" href="/community/">Community</a>
-        <a role="menuitem" href="/participants/">Participants</a>
       </nav>
     </div>
   </div>