fix(core-flows): cart validate sales channel (#11024)

integration-tests/http/__tests__/shipping-option/store/shipping-option.spec.ts

@@ -313,32 +313,6 @@ medusaIntegrationTestRunner({
           )
         })
 
-        it("should throw when required fields of a cart are not present", async () => {
-          cart = (
-            await api.post(
-              `/store/carts`,
-              {
-                region_id: region.id,
-                currency_code: "usd",
-                sales_channel_id: null,
-                email: "test@admin.com",
-                items: [],
-              },
-              storeHeaders
-            )
-          ).data.cart
-
-          const { response } = await api
-            .get(`/store/shipping-options?cart_id=${cart.id}`, storeHeaders)
-            .catch((e) => e)
-
-          expect(response.data).toEqual({
-            type: "invalid_data",
-            message:
-              "Field(s) are required to have value to continue - sales_channel_id",
-          })
-        })
-
         it("should throw error when cart_id is not passed as a parameter", async () => {
           const { response } = await api
             .get(`/store/shipping-options`, storeHeaders)