Mojo: Mojom: Remove some dead code.

mojo/public/tools/bindings/pylib/mojom/parse/parser.py

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Generates a syntax tree from a Mojo IDL file."""
 
 import imp
 import os.path
 import sys
 
@@ skipping 19 matching lines @@
 
 from ..error import Error
 import ast
 from lexer import Lexer
 
 
 _MAX_ORDINAL_VALUE = 0xffffffff
 _MAX_ARRAY_SIZE = 0xffffffff
 
 
-def _ListFromConcat(*items):
-  """Generate list by concatenating inputs (note: only concatenates lists, not
-  tuples or other iterables)."""
-  itemsout = []
-  for item in items:
-    if item is None:
-      continue
-    if type(item) is not type([]):
-      itemsout.append(item)
-    else:
-      itemsout.extend(item)
-  return itemsout
-
-
 # Disable lint check for exceptions deriving from Exception:
 # pylint: disable=W0710
 class ParseError(Error):
   """Class for errors from the parser."""
 
   def __init__(self, filename, message, lineno=None, snippet=None):
     Error.__init__(self, filename, message, lineno=lineno,
                    addenda=([snippet] if snippet else None))
 
 
@@ skipping 321 matching lines @@
 
 def Parse(source, filename):
   lexer = Lexer(filename)
   parser = Parser(lexer, source, filename)
 
   lex.lex(object=lexer)
   yacc.yacc(module=parser, debug=0, write_tables=0)
 
   tree = yacc.parse(source)
   return tree