Delete obsolete test code

Author: sbrannen

spring-core/src/test/java/org/springframework/core/retry/support/CompositeRetryListenerTests.java

@@ -16,7 +16,6 @@
 
 package org.springframework.core.retry.support;
 
-import java.time.Duration;
 import java.util.List;
 
 import org.junit.jupiter.api.BeforeEach;
@@ -105,7 +104,6 @@ void onRetryPolicyInterruption() {
 
 	@Test
 	void onRetryPolicyTimeout() {
-		Duration elapsedTime = Duration.ofMillis(100);
 		RetryException exception = new RetryException("", new Exception());
 		compositeRetryListener.onRetryPolicyTimeout(retryPolicy, retryable, exception);