Events: Remove unnecessary explicit icon color

pydis_site/templates/events/current_event.html

@@ -19,7 +19,7 @@ <h2 class="title is-4"><a href="https://pyweek.org/37/">PyWeek 37</a></h2>
     <p>A bi-annual game jam where participants write a game in Python in a week, either individually or as a team. The theme is voted by the competitors prior to the challenge, and the entries are also judged by the competitors after the challenge.</p>
     <a class="button is-primary" href="https://pyweek.org/37/">
         <span class="icon-text">
-            <span>Learn more</span><span class="icon has-text-white"><i class="fa-solid fa-arrow-right"></i></span>
+            <span>Learn more</span><span class="icon"><i class="fa-solid fa-arrow-right"></i></span>
         </span>
     </a>
 </div>