Polishing.

Remove unused imports.

See: #3025
Original pull request: #3026

Author: christophstrobl

src/main/java/org/springframework/data/web/config/SpringDataJacksonConfiguration.java

@@ -15,19 +15,13 @@
  */
 package org.springframework.data.web.config;
 
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 import org.springframework.context.annotation.Bean;
-import org.springframework.data.domain.Page;
-import org.springframework.data.domain.PageImpl;
 import org.springframework.data.geo.GeoModule;
 import org.springframework.lang.Nullable;
 import org.springframework.util.ClassUtils;
 
-import com.fasterxml.jackson.databind.annotation.JsonSerialize;
 import com.fasterxml.jackson.databind.module.SimpleModule;
 import com.fasterxml.jackson.databind.ser.std.ToStringSerializerBase;
-import com.fasterxml.jackson.databind.util.StdConverter;
 
 /**
  * JavaConfig class to export Jackson specific configuration.