Change comments.

PiperOrigin-RevId: 242312909

Author: afrozenator

tensor2tensor/trax/rlax/ppo.py

@@ -13,21 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-"""PPO in JAX.
-
-Automatically generated by Colaboratory.
-
-Original file is located at
-    https://colab.research.google.com/drive/10TTS11vHoZYD4n1h7EXNX5jhLgfqZK6r
-
-# [go/ppo-jax](http://go/ppo-jax)
-
- - Full batched implementation
- - Policy implementations
-  - Greedy
-  - Epsilon Greedy
-  - Categorical
-"""
+"""PPO in JAX."""
 
 from __future__ import absolute_import
 from __future__ import division