Merge pull request #34818 from izeye

* pr/34818:
  Remove unused test configuration

Closes gh-34818

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/jdbc/XADataSourceAutoConfigurationTests.java

@@ -125,16 +125,6 @@ class XADataSourceAutoConfigurationTests {
 		return context;
 	}
 
-	@Configuration(proxyBeanMethods = false)
-	static class JdbcConnectionDetailsConfiguration {
-
-		@Bean
-		JdbcConnectionDetails jdbcConnectionDetails() {
-			return new TestJdbcConnectionDetails();
-		}
-
-	}
-
 	@Configuration(proxyBeanMethods = false)
 	static class WrapExisting {