[Shipping Labels] Delete redundant hstariff class validation logic#15990

RafaelKayumov merged 3 commits intotrunkwoocommerce/woocommerce-ios:trunkfrom

WOOMOB-891-delete-redundant-hstariff-class-validation-logicwoocommerce/woocommerce-ios:WOOMOB-891-delete-redundant-hstariff-class-validation-logicCopy head branch name to clipboard