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diff --git a/deps/node/deps/icu-small/source/i18n/erarules.h b/deps/node/deps/icu-small/source/i18n/erarules.h
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--- a/deps/node/deps/icu-small/source/i18n/erarules.h
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@@ -1,92 +0,0 @@
-// © 2018 and later: Unicode, Inc. and others.
-// License & terms of use: http://www.unicode.org/copyright.html
-
-#ifndef ERARULES_H_
-#define ERARULES_H_
-
-#include "unicode/utypes.h"
-
-#if !UCONFIG_NO_FORMATTING
-
-#include "unicode/localpointer.h"
-#include "unicode/uobject.h"
-#include "cmemory.h"
-
-U_NAMESPACE_BEGIN
-
-// Export an explicit template instantiation of LocalMemory used as a data member of EraRules.
-// When building DLLs for Windows this is required even though no direct access leaks out of the i18n library.
-// See digitlst.h, pluralaffix.h, datefmt.h, and others for similar examples.
-#if U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN
-// Ignore warning 4661 as LocalPointerBase does not use operator== or operator!=
-#pragma warning(suppress: 4661)
-template class U_I18N_API LocalPointerBase<int32_t>;
-template class U_I18N_API LocalMemory<int32_t>;
-#endif
-
-class U_I18N_API EraRules : public UMemory {
-public:
- ~EraRules();
-
- static EraRules* createInstance(const char *calType, UBool includeTentativeEra, UErrorCode& status);
-
- /**
- * Gets number of effective eras
- * @return number of effective eras
- */
- inline int32_t getNumberOfEras() const {
- return numEras;
- }
-
- /**
- * Gets start date of an era
- * @param eraIdx Era index
- * @param fields Receives date fields. The result includes values of year, month,
- * day of month in this order. When an era has no start date, the result
- * will be January 1st in year whose value is minimum integer.
- * @param status Receives status.
- */
- void getStartDate(int32_t eraIdx, int32_t (&fields)[3], UErrorCode& status) const;
-
- /**
- * Gets start year of an era
- * @param eraIdx Era index
- * @param status Receives status.
- * @return The first year of an era. When a era has no start date, minimum int32
- * value is returned.
- */
- int32_t getStartYear(int32_t eraIdx, UErrorCode& status) const;
-
- /**
- * Returns era index for the specified year/month/day.
- * @param year Year
- * @param month Month (1-base)
- * @param day Day of month
- * @param status Receives status
- * @return era index (or 0, when the specified date is before the first era)
- */
- int32_t getEraIndex(int32_t year, int32_t month, int32_t day, UErrorCode& status) const;
-
- /**
- * Gets the current era index. This is calculated only once for an instance of
- * EraRules.
- *
- * @return era index of current era (or 0, when current date is before the first era)
- */
- inline int32_t getCurrentEraIndex() const {
- return currentEra;
- }
-
-private:
- EraRules(LocalMemory<int32_t>& eraStartDates, int32_t numEra);
-
- void initCurrentEra();
-
- LocalMemory<int32_t> startDates;
- int32_t numEras;
- int32_t currentEra;
-};
-
-U_NAMESPACE_END
-#endif /* #if !UCONFIG_NO_FORMATTING */
-#endif /* ERARULES_H_ */