[feat](stats) delete data size stat and Made task timeout configurable (#20090)

1. Delete the stats for data size, since it would cost too much time but useless
2. Make task time out configurable since when it's common to analyze a quite huge table that the default 10 min is not suitable

fe/fe-common/src/main/java/org/apache/doris/common/Config.java

@@ -1993,4 +1993,8 @@ public class Config extends ConfigBase {
             "是否启用binlog特性",
             "Whether to enable binlog feature"})
     public static boolean enable_feature_binlog = false;
+
+    @ConfField
+    public static int analyze_task_timeout_in_minutes = 120;
+
 }