Revert 188080 "Add vm672-m1 (the new Mac ASan builder) to the li..."

tools/clang/scripts/update.sh

 #!/usr/bin/env bash
 # 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.
 
 # This script will check out llvm and clang into third_party/llvm and build it.
 
 # Do NOT CHANGE this if you don't know what you're doing -- see
 # https://code.google.com/p/chromium/wiki/UpdatingClang
 # Reverting problematic clang rolls is safe, though.
@@ skipping 73 matching lines @@
   esac
   shift
 done
 
 # Are we on a Chrome buildbot running ASan?
 function on_asan_mac_host {
   if [[ "${OS}" != "Darwin" ]]; then
     return 1
   fi
   HOST="$(hostname -s)"
-  # Old (10.6) Chrome Mac ASan Builder. Kept here till we fully migrate to 10.8
+  # Chrome Mac ASan Builder.
   if [[ "${HOST}" == "vm633-m1" ]]; then
     return 0
   fi
-  # 10.8 Chrome Mac ASan Builder.
-  if [[ "${HOST}" == "vm672-m1" ]]; then
-    return 0
-  fi
   # Chrome Mac ASan LKGR.
   if [[ "${HOST}" == "mini11-a1" ]]; then
     return 0
   fi
   # mac_asan trybots.
   for num in $(jot - 600 655)
   do
     if [[ "${HOST}" == "vm${num}-m4" ]]; then
       return 0
     fi
@@ skipping 282 matching lines @@
   # Run a few tests.
   PLUGIN_SRC_DIR="${THIS_DIR}/../plugins"
   "${PLUGIN_SRC_DIR}/tests/test.sh" "${LLVM_BUILD_DIR}/Release+Asserts"
   cd "${LLVM_BUILD_DIR}"
   make check-all
   cd -
 fi
 
 # After everything is done, log success for this revision.
 echo "${CLANG_REVISION}" > "${STAMP_FILE}"