Remove java.time.Duration converter

Author: ppkarwasz

log4j-core/src/main/java/org/apache/logging/log4j/core/config/plugins/convert/TypeConverters.java

@@ -32,7 +32,6 @@
 import java.nio.file.Paths;
 import java.security.Provider;
 import java.security.Security;
-import java.time.Duration;
 import java.util.UUID;
 import java.util.regex.Pattern;
 import org.apache.logging.log4j.Level;
@@ -226,7 +225,7 @@ public Double convert(final String s) {
     /**
      * Converts a {@link String} into a {@link org.apache.logging.log4j.core.appender.rolling.action.Duration}.
      * @since 2.5
-     * @deprecated since 2.24.0 use {@link JavaDurationConverter}
+     * @deprecated since 2.24.0. A {@link java.time.Duration} converter will be available in 3.0.0.
      */
     @Plugin(name = "Duration", category = CATEGORY)
     @Deprecated
@@ -238,18 +237,6 @@ public org.apache.logging.log4j.core.appender.rolling.action.Duration convert(fi
         }
     }
 
-    /**
-     * Converts a {@link String} into a {@link Duration}.
-     * @since 2.24.0
-     */
-    @Plugin(name = "JavaDuration", category = CATEGORY)
-    public static class JavaDurationConverter implements TypeConverter<Duration> {
-        @Override
-        public Duration convert(final String s) {
-            return Duration.parse(s);
-        }
-    }
-
     /**
      * Converts a {@link String} into a {@link File}.
      */