refactor(checkout): remove legacy purchase item reservations

app/Domains/Purchase/Services/Checkout/SourceCartService.php

@@ -6,7 +6,6 @@ use App\Domains\Cart\Models\Cart;
 use App\Domains\Cart\Models\CartItem;
 use App\Domains\Catalog\Services\StockReservationService;
 use App\Domains\Purchase\Models\Purchase;
-use App\Domains\Purchase\Models\PurchaseItem;
 
 class SourceCartService
 {
@@ -63,23 +62,6 @@ class SourceCartService
         return true;
     }
 
-    public function syncItemQuantity(
-        Purchase $purchase,
-        PurchaseItem $purchaseItem,
-        int $quantity,
-    ): void {
-        $sourceCart = $this->findSourceCart($purchase);
-
-        if ($sourceCart === null) {
-            return;
-        }
-
-        $sourceCart->items()
-            ->where('catalog_item_id', $purchaseItem->source_catalog_item_id)
-            ->where('variant_id', $purchaseItem->source_variant_id)
-            ->update(['cantidad' => $quantity]);
-    }
-
     public function finalize(Purchase $purchase): void
     {
         $sourceCart = $this->findSourceCart($purchase);