Remove unused application startup call

AbstractApplicationContext.applicationStartup can only be injected after the instance construction. This metrics point has no practical effect at present and can be removed safely.

Closes gh-35570
Signed-off-by: Wars <wars@wars.cat>

spring-context/src/main/java/org/springframework/context/annotation/AnnotationConfigApplicationContext.java

@@ -66,9 +66,7 @@ public class AnnotationConfigApplicationContext extends GenericApplicationContex
 	 * through {@link #register} calls and then manually {@linkplain #refresh refreshed}.
 	 */
 	public AnnotationConfigApplicationContext() {
-		StartupStep createAnnotatedBeanDefReader = getApplicationStartup().start("spring.context.annotated-bean-reader.create");
 		this.reader = new AnnotatedBeanDefinitionReader(this);
-		createAnnotatedBeanDefReader.end();
 		this.scanner = new ClassPathBeanDefinitionScanner(this);
 	}