remove unnecessary dependency on industry

alphamind/execution/baseexecutor.py

@@ -25,6 +25,5 @@ class ExecutorBase(metaclass=abc.ABCMeta):
     def calc_turn_over(target_pos: pd.DataFrame, current_pos: pd.DataFrame) -> float:
         pos_merged = pd.merge(target_pos, current_pos, on=['code'], how='outer')
         pos_merged.fillna(0, inplace=True)
-        pos_merged['industry'] = pos_merged['industry_x'].where(pos_merged['industry_x'] != 0, pos_merged['industry_y'])
         turn_over = np.abs(pos_merged.weight_x - pos_merged.weight_y).sum()
         return turn_over