Revert "update ad abtest threshold 173/ab1: mean/24*13 -> mean/16*9, 173/ab2,3,6,7,8: mean/16*9 -> mean/12*7, 173/ab4: mean/12*7 -> mean/48*29"

This reverts commit 038f482b4d6a04ae7fa84cc3d46f8f5f16f14f58.

config.py

@@ -848,14 +848,14 @@ class BaseConfig(object):
         # vlog
         '173': {
             'ab0': {'group': 1 / 2, 'mean_group': 1 / 2},
-            'ab1': {'group': 9 / 16, 'mean_group': 9 / 16},
-            'ab2': {'group': 7 / 12, 'mean_group': 7 / 12},
-            'ab3': {'group': 7 / 12, 'mean_group': 7 / 12},
-            'ab4': {'group': 29 / 48, 'mean_group': 29 / 48},
+            'ab1': {'group': 13 / 24, 'mean_group': 13 / 24},
+            'ab2': {'group': 9 / 16, 'mean_group': 9 / 16},
+            'ab3': {'group': 9 / 16, 'mean_group': 9 / 16},
+            'ab4': {'group': 7 / 12, 'mean_group': 7 / 12},
             'ab5': {'group': 7 / 12, 'mean_group': 7 / 12},
-            'ab6': {'group': 7 / 12, 'mean_group': 7 / 12},
-            'ab7': {'group': 7 / 12, 'mean_group': 7 / 12},
-            'ab8': {'group': 7 / 12, 'mean_group': 7 / 12},
+            'ab6': {'group': 9 / 16, 'mean_group': 9 / 16},
+            'ab7': {'group': 9 / 16, 'mean_group': 9 / 16},
+            'ab8': {'group': 9 / 16, 'mean_group': 9 / 16},
             'ab9': {'group': 1 / 2, 'mean_group': 1 / 2},
         },
         # 票圈视频+