remove self-contained TL

Author: zsdonghao

README.md

@@ -1,8 +1,7 @@
 ## Super Resolution Examples
 
 
-We run this script under [TensorFlow](https://www.tensorflow.org) 1.2 and the self-contained [TensorLayer](https://github.com/tensorlayer/tensorlayer) 1.8.0. If you got error, you may need to update TensorLayer.
-
+We run this script under [TensorFlow](https://www.tensorflow.org) 1.2 and the [TensorLayer](https://github.com/tensorlayer/tensorlayer) 1.8.0.
 
 <!---
 ⚠️ This repo will be merged into [tensorlayer](https://github.com/zsdonghao/tensorlayer) soon.