Remove the checked-in scons configuration files.

build/internal/release_impl_purify.scons

Index: build/internal/release_impl_purify.scons
===================================================================
--- build/internal/release_impl_purify.scons	(revision 12583)
+++ build/internal/release_impl_purify.scons	(working copy)
@@ -1,33 +0,0 @@
-# Copyright (c) 2006-2008 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__ = """
-Release settings for Chromium builds with Purify.
-"""
-
-Import("env")
-
-env.ApplySConscript(['release_defaults.scons'])
-
-env.Append(
-    CPPDEFINES = [
-        'PURIFY',
-    ],
-)
-
-if env.Bit('windows'):
-  env.Replace(
-      CHROMIUM_CC_OPT_FLAGS = [
-          '/Od',            # VCCLCompilerTool.Optimization="0"
-      ],
-      CHROMIUM_LINK_OPT_FLAGS = [
-          '/OPT:NOICF',     # VCLinkerTool.EnableCOMDATFolding="2"
-      ],
-  ),
-  env.Append(
-      CCFLAGS = [
-          '/MT',            # VCCLCompilerTool.RuntimeLibrary="0"
-          '/GS-',           # VCCLCompilerTool.BufferSecurityCheck="false"
-      ],
-  )