Remove useless toString in Timeout Filter (#10531)

dubbo-rpc/dubbo-rpc-api/src/main/java/org/apache/dubbo/rpc/filter/TimeoutFilter.java

@@ -29,8 +29,6 @@ import org.apache.dubbo.rpc.RpcContext;
 import org.apache.dubbo.rpc.RpcException;
 import org.apache.dubbo.rpc.TimeoutCountDown;
 
-import java.util.Arrays;
-
 import static org.apache.dubbo.common.constants.CommonConstants.TIME_COUNTDOWN_KEY;
 
 /**
@@ -54,9 +52,8 @@ public class TimeoutFilter implements Filter, Filter.Listener {
             if (countDown.isExpired()) {
                 ((AppResponse) appResponse).clear(); // clear response in case of timeout.
                 if (logger.isWarnEnabled()) {
-                    logger.warn("invoke timed out. method: " + invocation.getMethodName() + " arguments: " +
-                            Arrays.toString(invocation.getArguments()) + " , url is " + invoker.getUrl() +
-                            ", invoke elapsed " + countDown.elapsedMillis() + " ms.");
+                    logger.warn("invoke timed out. method: " + invocation.getMethodName() +
+                            " url is " + invoker.getUrl() + ", invoke elapsed " + countDown.elapsedMillis() + " ms.");
                 }
             }
         }