[avalaraForReact] Remove C_ORDERTAX_ORDER_TAX_UN and...
For External Tax Engine API it's necessary to allow having the same tax more than once in the same order or order line. This is because all the taxes calculated by the external tax engine will be saved in Openbravo using the same dummy tax rate.
Try-backoffice: https://builds.openbravo.com/job/try-init/2107/console
Edited by Álvaro Ferraz