fix style

Author: Sunny Jiao

framework/src/main/java/org/tron/core/services/interfaceOnSolidity/http/GetPaginatedNowWitnessListOnSolidityServlet.java

@@ -1,14 +1,13 @@
 package org.tron.core.services.interfaceOnSolidity.http;
 
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 import org.tron.core.services.http.GetPaginatedNowWitnessListServlet;
 import org.tron.core.services.interfaceOnSolidity.WalletOnSolidity;
 
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-
 @Component
 @Slf4j(topic = "API")
 public class GetPaginatedNowWitnessListOnSolidityServlet extends GetPaginatedNowWitnessListServlet {