chore: delete owlbot.py (#205)

* chore: delete owlbot.py

* 🦉 Updates from OwlBot

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

packages/google-cloud-texttospeech/docs/index.rst

@@ -2,47 +2,42 @@
 
 .. include:: multiprocessing.rst
 
-This package includes clients for multiple versions of the Text-to-Speech
-API. By default, you will get ``v1``, the latest GA version.
+This package includes clients for multiple versions of Google Cloud Text-to-Speech.
+By default, you will get version ``texttospeech_v1``.
 
-v1 API Reference
-----------------
+
+API Reference
+-------------
 .. toctree::
  :maxdepth: 2
 
- Client (v1) <texttospeech_v1/services>
- Types (v1) <texttospeech_v1/types>
-
+ texttospeech_v1/services
+ texttospeech_v1/types
 
-If you are interested in beta features ahead of the latest GA, you may
-opt-in to the v1.1 beta, which is spelled ``v1beta1``. In order to do this,
-you will want to import from ``google.cloud.texttospeech_v1beta1`` in lieu of
-``google.cloud.texttospeech``.
-
-v1beta1 API Reference
----------------------
+API Reference
+-------------
 .. toctree::
  :maxdepth: 2
- 
- Client (v1beta1) <texttospeech_v1beta1/services>
- Types (v1beta1) <texttospeech_v1beta1/types>
+
+ texttospeech_v1beta1/services
+ texttospeech_v1beta1/types
 
 
 Migration Guide
 ---------------
 
-See the guide below for instructions on migrating to the 2.x release of this library.
+See the guide below for instructions on migrating to the latest version.
 
 .. toctree::
  :maxdepth: 2
 
-  UPGRADING
+  UPGRADING
 
 
 Changelog
 ---------
 
-For a list of all ``google-cloud-texttospeech`` releases.
+For a list of all ``google-cloud-texttospeech`` releases:
 
 .. toctree::
  :maxdepth: 2