Drop printed link to reference documentation

Tweak the fix from 50c68a4 to no longer print a link the reference
documentation.

See gh-6593

Author: philwebb

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/logging/AutoConfigurationReportLoggingInitializer.java

@@ -19,7 +19,6 @@
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 
-import org.springframework.boot.SpringBootVersion;
 import org.springframework.boot.autoconfigure.condition.ConditionEvaluationReport;
 import org.springframework.boot.context.event.ApplicationFailedEvent;
 import org.springframework.boot.logging.LogLevel;
@@ -99,23 +98,17 @@ public void logAutoConfigurationReport(boolean isCrashReport) {
 		if (!this.report.getConditionAndOutcomesBySource().isEmpty()) {
 			if (isCrashReport && this.logger.isInfoEnabled()
 					&& !this.logger.isDebugEnabled()) {
-				this.logger.info(String.format("%n%nError starting ApplicationContext. "
-						+ "To display the auto-configuration report re-run your application with debug enabled,%n"
-						+ "see also %s%n%n", createStartupFailureDocUrl()));
+				this.logger.info(String
+						.format("%n%nError starting ApplicationContext. To display the "
+								+ "auto-configuration report re-run your application with "
+								+ "'debug' enabled."));
 			}
 			if (this.logger.isDebugEnabled()) {
 				this.logger.debug(new ConditionEvaluationReportMessage(this.report));
 			}
 		}
 	}
 
-	private String createStartupFailureDocUrl() {
-		String bootVersion = SpringBootVersion.getVersion();
-		String version = bootVersion != null ? bootVersion : "current";
-		return String.format(
-				"http://docs.spring.io/spring-boot/docs/%s/reference/html/boot-features-spring-application.html#boot-features-startup-failure", version);
-	}
-
 	private class AutoConfigurationReportListener implements GenericApplicationListener {
 
 		@Override

spring-boot-docs/src/main/asciidoc/spring-boot-features.adoc

@@ -50,7 +50,6 @@ such as the user that launched the application.
 
 [boot-features-startup-failure]
 === Startup failure
-
 If your application fails to start, registered `FailureAnalyzers` get a chance to provide
 a dedicated error message and a concrete action to fix the problem. For instance if you
 start a web application on port `8080` and that port is already in use, you should see