Removed '=undefined' from translation files

htdocs/langs/ca_ES/companies.lang

htdocs/langs/ca_ES/dict.lang

htdocs/langs/ca_ES/interventions.lang

htdocs/langs/ca_ES/propal.lang

htdocs/langs/da_DK/main.lang

htdocs/langs/es_ES/errors.lang

htdocs/langs/fi_FI/main.lang

htdocs/langs/pl_PL/main.lang

htdocs/langs/pt_BR/companies.lang

htdocs/langs/pt_BR/contracts.lang

htdocs/langs/pt_PT/companies.lang

htdocs/langs/pt_PT/contracts.lang