Remove obsolete method

Author: sbrannen

junit-jupiter-params/src/main/java/org/junit/jupiter/params/ParameterizedTestNameFormatter.java

@@ -34,7 +34,6 @@
 import java.util.function.Function;
 import java.util.stream.IntStream;
 
-import org.junit.jupiter.api.Named;
 import org.junit.jupiter.api.extension.ExtensionConfigurationException;
 import org.junit.platform.commons.JUnitException;
 import org.junit.platform.commons.util.StringUtils;
@@ -79,12 +78,6 @@ private String formatSafely(int invocationIndex, EvaluatedArgumentSet arguments)
 		return result.toString();
 	}
 
-	private Object[] extractNamedArguments(Object[] arguments) {
-		return Arrays.stream(arguments) //
-				.map(argument -> argument instanceof Named ? ((Named<?>) argument).getName() : argument) //
-				.toArray();
-	}
-
 	private PartialFormatter[] parse(String pattern, String displayName, ParameterizedTestMethodContext methodContext,
 			int argumentMaxLength) {