新品、新降价、新开促销全部改为随机召回，保证skn出现的公平性

@@ -2,7 +2,6 @@ package com.yoho.search.recall.scene.beans.strategy;
 
 public enum  SortBrandType {
     REC_SORT_BRAND,
-    PRED_SORT_BRAND,
     VEC_RNN_SORT_BRAND,
     VEC_W2V_SORT_BRAND
 }

@@ -32,7 +32,7 @@ public class SortBrandNewShelveStrategy extends SortBrandAbstractStrategy {
 
 	@Override
 	public SortBuilder<?> sortBuilder() {
-		return SortBuilderHelper.getFirstShelveTimeDescSort();
+		return SortBuilderHelper.getRandomSort();
 	}
 
 }

@@ -32,7 +32,7 @@ public class SortBrandReducePriceStrategy extends SortBrandAbstractStrategy {
 
 	@Override
 	public SortBuilder<?> sortBuilder() {
-		return SortBuilderHelper.getLastReducePriceTimeDescSort();
+		return SortBuilderHelper.getRandomSort();
 	}
 
 }

@@ -16,8 +16,8 @@ public class SknCountConstants {
     public static final int NEW_SHOP = 5;//减少10->5
     public static final int ADD_FLOW = 10;
 
-    public static final int REC_SORT_BRAND_SKN_COUNT = 8;
-    public static final int VEC_SORT_BRAND_SKN_COUNT = 4;//8->4
+    public static final int REC_SORT_BRAND_SKN_COUNT = 6;
+    public static final int VEC_SORT_BRAND_SKN_COUNT = 3;
 
     public static final int MAX_USER_RECALL_SKN_CACHE_COUNT = 200;