删除类中多引入的包

src/main/java/com/founder/interservice/regionalanalysis/controller/RegionalAnalysisController.java

@@ -20,7 +20,6 @@ import org.springframework.scheduling.annotation.Async;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.servlet.ModelAndView;
-import sun.misc.BASE64Encoder;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import java.text.DecimalFormat;