Remove the checked-in scons configuration files.

net/net_main.scons

Index: net/net_main.scons
===================================================================
--- net/net_main.scons	(revision 12583)
+++ net/net_main.scons	(working copy)
@@ -1,29 +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__ = """
-Master configuration for building net components.
-"""
-
-Import('env')
-
-# Arrange for Hammer to add all programs to the 'net' Alias.
-env.Append(
-    COMPONENT_PROGRAM_GROUPS = ['net'],
-    COMPONENT_TEST_PROGRAM_GROUPS = ['net'],
-)
-
-sconscript_files = [
-    'crash_cache.scons',
-    'dump_cache.scons',
-    'net_lib.scons',
-    'net_perftests.scons',
-    'net_resources.scons',
-    'net_sln.scons',
-    'net_unittests.scons',
-    'stress_cache.scons',
-    'tools/tld_cleanup/tld_cleanup.scons',
-]
-
-SConscript(sconscript_files, exports=['env'])