message: Hide duplicated compat modules from doc generator.
  No more compat.v2.compat.v1
diff: @@ -123,7 +123,13 @@ if tf.__version__.startswith('1'):
  'tf.contrib.util': ['loader'],
  }
  else:
  - PRIVATE_MAP = {'tf': ['python', 'core', 'compiler', 'examples', 'tools']}
  + PRIVATE_MAP = {
  + 'tf': ['python', 'core', 'compiler', 'examples', 'tools'],
  + # There's some aliasing between the compats and v1/2s, so it's easier to
  + # block by name and location than by deleting, or hiding objects.
  + 'tf.compat.v1.compat': ['v1', 'v2'],
  + 'tf.compat.v2.compat': ['v1', 'v2']
  + }
  DO_NOT_DESCEND_MAP = {}
  tf.__doc__ = """
  ## TensorFlow 2.0 RC
  @@ -234,11 +240,6 @@ def build_docs(output_dir, code_url_prefix, search_hints=True):
  except AttributeError:
  pass
  - try:
  - doc_controls.do_not_generate_docs(tf.compat.v2.compat.v1)
  - except AttributeError:
  - pass
  -
  base_dir = path.normpath(path.join(tf.__file__, "../.."))
  base_dirs = (
  