docs: remove English info from Chinese getting started guide

The English text was a duplicate of the Chinese text and therefor unnecessary.

Closes DOC-213

docs/idf_extensions/gen_version_specific_includes.py

@@ -104,8 +104,6 @@ TEMPLATES = {
             "master": """
 .. note::
      这是ESP-IDF master 分支（最新版本）的文档，该版本在持续开发中。还有 `Stable version`_ 的文档，以及其他版本的文档 :doc:`/versions` 供参考。
-     This is documentation for the master branch (latest version) of ESP-IDF. This version is under continual development. `Stable version`_ documentation is '
-     'available, as well as other :doc:`/versions`.
 """,
             "stable": """
 .. note::