Drop status endpoint

Drop the status endpoint and merge functionality back into the health
endpoint. The `management.endpoint.health.show-details` property can
be used to change if full details, or just the status is displayed.

Fixes gh-11113

spring-boot-samples/spring-boot-sample-webflux/src/test/java/sample/webflux/SampleWebFluxApplicationTests.java

@@ -55,7 +55,7 @@ public class SampleWebFluxApplicationTests {
 
 	@Test
 	public void testActuatorStatus() {
-		this.webClient.get().uri("/application/status").accept(MediaType.APPLICATION_JSON)
+		this.webClient.get().uri("/application/health").accept(MediaType.APPLICATION_JSON)
 				.exchange().expectStatus().isOk().expectBody()
 				.json("{\"status\":\"UP\"}");
 	}