ICU-21337 Remove U_I18N_API from enum.

diff --git a/icu4c/source/i18n/units_converter.h b/icu4c/source/i18n/units_converter.h
index 86764058eb20c448595baebecbc79ce446b6adf9..7650131b1f6975389f258134bdc4e5b5e18c0434 100644 (file)
--- a/icu4c/source/i18n/units_converter.h
+++ b/icu4c/source/i18n/units_converter.h
@@ -94,7 +94,7 @@ struct U_I18N_API ConversionRate : public UMemory {
         : source(std::move(source)), target(std::move(target)) {}
 };
 
-enum U_I18N_API Convertibility {
+enum Convertibility {
     RECIPROCAL,
     CONVERTIBLE,
     UNCONVERTIBLE,