Remove unused logger from class

Logger is not being used here.  Removing

json-path/src/main/java/com/jayway/jsonpath/Configuration.java

@@ -18,9 +18,6 @@ import com.jayway.jsonpath.internal.DefaultsImpl;
 import com.jayway.jsonpath.spi.json.JsonProvider;
 import com.jayway.jsonpath.spi.mapper.MappingProvider;
 
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
@@ -36,8 +33,6 @@ import static java.util.Arrays.asList;
  */
 public class Configuration {
 
-    private static final Logger logger = LoggerFactory.getLogger(Configuration.class);
-
     private static Defaults DEFAULTS = null;
 
     /**