Remove unused logger field

Author: sbrannen

spring-core/src/main/java/org/springframework/aot/hint/BindingReflectionHintsRegistrar.java

@@ -24,8 +24,6 @@
 
 import kotlin.jvm.JvmClassMappingKt;
 import kotlin.reflect.KClass;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
 
 import org.springframework.core.KotlinDetector;
 import org.springframework.core.MethodParameter;
@@ -45,8 +43,6 @@
  */
 public class BindingReflectionHintsRegistrar {
 
-	private static final Log logger = LogFactory.getLog(BindingReflectionHintsRegistrar.class);
-
 	private static final String KOTLIN_COMPANION_SUFFIX = "$Companion";
 
 	/**