Merge pull request #204 from mamingjie-China/develop-1.6

update  x2paddle_model_zoo.md

x2paddle_model_zoo.md

@@ -21,7 +21,6 @@
 | UNet | [code1](https://github.com/jakeret/tf_unet )/[code2](https://github.com/lyatdawn/Unet-Tensorflow) |-|
 |MTCNN | [code](https://github.com/AITTSMD/MTCNN-Tensorflow) |-|
 |YOLO-V3| [code](https://github.com/YunYang1994/tensorflow-yolov3) | 转换需要关闭NHWC->NCHW的优化，见[文档Q2](FAQ.md) |
-|Inception_V4| [code](https://github.com/tensorflow/models/tree/master/research/slim/nets) | - |
 |Inception_ResNet_V2| [code](https://github.com/tensorflow/models/tree/master/research/slim/nets) | - |
 
 ## Caffe