fix(Fall Hacks 2025): Removed Fall Hacks 2025 registration link

Author: jbriones1

public/fall-hacks/2025/index.html

@@ -92,13 +92,7 @@ <h2>About</h2>
         <h2>Register & Contact</h2>
         <ul class="register__list">
           <li>
-            <a
-              href="https://docs.google.com/forms/d/e/1FAIpQLSfSeWJ09AEgwjZjEEANhMs_yWL8y-4nFAmIzb1qKHNsTX4NUQ/viewform?usp=sharing&ouid=111801379333111153622"
-              target="_blank"
-            >
-              Register</a
-            >
-            <span> (closes September 25 @ 11:59PM)</span>
+            <span>Closed (closed September 25 @ 11:59PM)</span>
           </li>
 
           <li><a href="https://discord.gg/sfucsss" target="_blank">SFU CSSS Discord</a></li>