解决冲突，优化代码

src/main/java/com/diagbot/facade/BehospitalInfoFacade.java

@@ -60,7 +60,6 @@ import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Component;
 
 import javax.servlet.http.HttpServletResponse;
-import java.text.DateFormat;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.Arrays;