message: Minor cleanup of dead code.
diff: @@ -23,7 +23,7 @@ import collections
  import gast
  from tensorflow.python.autograph.pyct import anno
  -from tensorflow.python.autograph.pyct import loader
  +from tensorflow.python.autograph.pyct import parser
  from tensorflow.python.autograph.pyct import pretty_printer
  from tensorflow.python.autograph.pyct import templates
  @@ -267,7 +267,7 @@ class NodeStateTracker(object):
  def debug_print_src(self, node):
  """Helper method useful for debugging. Prints the AST as code."""
  if __debug__:
  - print(loader.load_ast(node))
  + print(parser.unparse(node))
  return node
  def visit_block(self, nodes, before_visit=None, after_visit=None):
  @@ -346,17 +346,6 @@ class NodeStateTracker(object):
  node_destination = new_destination
  return results
  - def _get_source(self, node):
  - try:
  - source, _ = loader.load_ast(node)
  - return source
  - # pylint: disable=broad-except
  - # This function is used for error reporting. If an exception occurs here,
  - # it should be suppressed, in favor of emitting as informative a message
  - # about the original error as possible.
  - except Exception:
  - return '<could not convert AST to source>'
  -
  # TODO(mdan): Rename to PythonCodeTransformer.
  class Base(NodeStateTracker, gast.NodeTransformer):
  