[Issue] magento/magento2#: GraphQl. Remove a redundant logic in “SetShippingMethodsOnCart” mutation resolver

Summary (*)

PR removes a redundant logic in the SetShippingMethodsOnCart mutation resolver because Webonix covers the next cases:

• shipping_methods.carrier_code does not exist

• shipping_methods.method_code does not exist

Examples (*)

Proposed solution

[magento-engcom-team]

✅ Confirmed by @VladimirZaets
Thank you for verifying the issue. Based on the provided information internal tickets MC-34755 were created

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