移除check

strategy/src/predictor.rs

@@ -488,9 +488,6 @@ impl Predictor {
         if self.mid_price.is_zero() {
             return false;
         }
-        if self.record_vec.len() < 200 {
-            return false;
-        }
 
         let prev_bid_delta = self.bid_delta;
         let prev_ask_delta = self.ask_delta;