zero out rel feat, yes no features already zeroed out

answer_classifier_cached_features/inference.py

@@ -218,7 +218,7 @@ class AnswerInference():
 
             # (25*18 x 2500)
             self.per_answer_feat = tf.nn.relu(
-                self.obj_atr_det_fc_bn + self.q_a_feat_fc_bn + self.single_feats_fc_bn)
+                self.obj_atr_det_fc_bn + self.q_a_feat_fc_bn + 0*self.single_feats_fc_bn)
             
             # (25*18 x 1)
             self.answer_score = self.fc_bn(