Remove potentially confusing kotlin-reflect related log message

Closes gh-24939

Author: sdeleuze

spring-core/src/main/java/org/springframework/core/KotlinDetector.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2020 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,9 +18,6 @@
 
 import java.lang.annotation.Annotation;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-
 import org.springframework.lang.Nullable;
 import org.springframework.util.ClassUtils;
 
@@ -34,8 +31,6 @@
 @SuppressWarnings("unchecked")
 public abstract class KotlinDetector {
 
-	private static final Log logger = LogFactory.getLog(KotlinDetector.class);
-
 	@Nullable
 	private static final Class<? extends Annotation> kotlinMetadata;
 
@@ -53,9 +48,6 @@ public abstract class KotlinDetector {
 		}
 		kotlinMetadata = (Class<? extends Annotation>) metadata;
 		kotlinReflectPresent = ClassUtils.isPresent("kotlin.reflect.full.KClasses", classLoader);
-		if (kotlinMetadata != null && !kotlinReflectPresent) {
-			logger.info("Kotlin reflection implementation not found at runtime, related features won't be available.");
-		}
 	}