Update generated code for v1540

Author: stripe-openapi[bot]

OPENAPI_VERSION

@@ -1 +1 @@
-v1538
+v1540

src/main/java/com/stripe/model/InvoiceItem.java

@@ -133,17 +133,6 @@ public class InvoiceItem extends ApiResource implements HasId, MetadataStore<Inv
   @SerializedName("period")
   Period period;
 
-  /**
-   * If the invoice item is a proration, the plan of the subscription that the proration was
-   * computed for.
-   */
-  @SerializedName("plan")
-  Plan plan;
-
-  /** The price of the invoice item. */
-  @SerializedName("price")
-  Price price;
-
   /**
    * Whether the invoice item was created automatically as a proration adjustment when the customer
    * switched plans.
@@ -583,8 +572,6 @@ public void setResponseGetter(StripeResponseGetter responseGetter) {
     trySetResponseGetter(customer, responseGetter);
     trySetResponseGetter(invoice, responseGetter);
     trySetResponseGetter(period, responseGetter);
-    trySetResponseGetter(plan, responseGetter);
-    trySetResponseGetter(price, responseGetter);
     trySetResponseGetter(subscription, responseGetter);
     trySetResponseGetter(testClock, responseGetter);
   }