Revert captcha in donate-creditcard to legacy API

Author: tobihagemann

layouts/partials/donate-creditcard.html

@@ -49,7 +49,7 @@
         </button>
 
         {{ $challengeUrl := printf "%s/donations/stripe/payments/challenge" .Site.Params.apiBaseUrl }}
-        {{ partial "captcha.html" (dict "challengeUrl" $challengeUrl "captchaPayload" "oneTimePaymentStatus.captcha" "captchaState" "captchaState") }}
+        {{ partial "captcha.html" (dict "captchaPayload" "oneTimePaymentStatus.captcha" "captchaState" "captchaState") }}
 
         <p class="text-sm text-red-600 mt-2" x-text="oneTimePaymentStatus.errorMessage"></p>
       </div>