fix: drop unreachable null check

src/Service/ParticipantCardAssembler.php

@@ -142,16 +142,12 @@ class ParticipantCardAssembler
         int $index,
         ?array $precomputedPrices = null,
     ): ParticipantCardPriceDto {
-        // Check if canceled (only possible in edit mode when booking property is set)
-        $isCanceled = ($bookingDto->booking?->participantsStatus[$index] ?? null) === 'S';
+        // Canceled participants only exist in edit mode, where the booking is set
+        $booking = $bookingDto->booking;
 
-        if (true === $isCanceled) {
+        if (null !== $booking && 'S' === ($booking->participantsStatus[$index] ?? null)) {
             // Calculate surcharge total for canceled participant
-            if (null === $bookingDto->booking) {
-                return new ParticipantCardPriceDto(null, true);
-            }
-
-            $surcharges = $bookingDto->booking->getSurchargesForParticipant($index);
+            $surcharges = $booking->getSurchargesForParticipant($index);
             $surchargeTotal = 0.0;
 
             foreach ($surcharges as $surcharge) {