Remove the checked-in scons configuration files.

printing/printing.scons

Index: printing/printing.scons
===================================================================
--- printing/printing.scons	(revision 12583)
+++ printing/printing.scons	(working copy)
@@ -1,22 +0,0 @@
-# Copyright (c) 2009 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.
-
-__doc__ = """
-Master configuration for building printing components.
-"""
-
-Import('env')
-
-# Arrange for Hammer to add all programs to the 'printing' Alias.
-env.Append(
-    COMPONENT_PROGRAM_GROUPS = ['printing'],
-    COMPONENT_TEST_PROGRAM_GROUPS = ['printing'],
-)
-
-sconscript_files = [
-    'printing_lib.scons',
-    'printing_unittests.scons',
-]
-
-SConscript(sconscript_files, exports=['env'])