Remove a bunch of cruft from //build.

build/sanitize-mac-build-log.sed

-# Copyright (c) 2012 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.
-
-# Use this sed script to reduce a Mac build log into something readable.
-
-# Drop uninformative lines.
-/^distcc/d
-/^Check dependencies/d
-/^    setenv /d
-/^    cd /d
-/^make: Nothing to be done/d
-/^$/d
-
-# Xcode prints a short "compiling foobar.o" line followed by the lengthy
-# full command line.  These deletions drop the command line.
-\|^    /Developer/usr/bin/|d
-\|^    /Developer/Library/PrivateFrameworks/DevToolsCore\.framework/|d
-\|^    /Developer/Library/Xcode/Plug-ins/CoreBuildTasks\.xcplugin/|d
-
-# Drop any goma command lines as well.
-\|^    .*/gomacc |d
-
-# And, if you've overridden something from your own bin directory, remove those
-# full command lines, too.
-\|^    /Users/[^/]*/bin/|d
-
-# There's already a nice note for bindings, don't need the command line.
-\|^python scripts/rule_binding\.py|d
-
-# Shorten the "compiling foobar.o" line.
-s|^Distributed-CompileC (.*) normal i386 c\+\+ com\.apple\.compilers\.gcc\.4_2|    CC \1|
-s|^CompileC (.*) normal i386 c\+\+ com\.apple\.compilers\.gcc\.4_2|    CC \1|