diff --git a/build_library/test_build_root b/build_library/test_build_root
index 7eb156d..eb59332 100755
--- a/build_library/test_build_root
+++ b/build_library/test_build_root
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-# Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
+# Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
@@ -43,59 +43,4 @@
   fi
 done
 
-# Extract the version number from lines like:
-# kCrosAPIMinVersion = 29,
-# kCrosAPIVersion = 30
-extract_cros_version() {
-  NAME="$1"
-  FILE="$2"
-  VERSION=$(perl -ne "print \$1 if /^\\s*${NAME}\\s*=\\s*(\\d+)/" "$FILE")
-  test -z "$VERSION" && die "Failed to get $NAME from $FILE"
-  echo $VERSION
-}
-
-# Check the libcros version compatibility, like we do in libcros at run time.
-# See also platform/cros/version_check.cc and load.cc.
-check_cros_version() {
-  CHROME_CROS="${ROOT}/opt/google/chrome/include/chromeos_cros_api.h"
-  SYSTEM_CROS="${ROOT}/usr/include/cros/chromeos_cros_api.h"
-
-  if [ ! -f "$SYSTEM_CROS" ]; then
-    echo "test_build_root: Missing libcros headers."
-    return 1
-  fi
-
-
-  if [ ! -f "$CHROME_CROS" ]; then
-    # For compatiblity with old versions of Chrome which don't install headers
-    # and already check the libcros version, skip the check here.
-    return 0
-  fi
-
-  # Get the version of libcros in the chromium tree.
-  VERSION=$(extract_cros_version kCrosAPIVersion "${CHROME_CROS}")
-
-  # Get the min version of libcros in the chromium os tree.
-  MIN_VERSION=$(extract_cros_version kCrosAPIMinVersion "${SYSTEM_CROS}")
-
-  # Get the max version of libcros in the chromium os tree.
-  MAX_VERSION=$(extract_cros_version kCrosAPIVersion "${SYSTEM_CROS}")
-
-  if [ "$MIN_VERSION" -gt "$VERSION" ]; then
-    echo "test_build_root: System libcros not compatible with Chromium."
-    echo "Chromium requires version $VERSION, but system provides $MIN_VERSION"
-    echo "or later."
-    return 1
-  fi
-  if [ "$VERSION" -gt "$MAX_VERSION" ]; then
-    echo "test_build_root: System libcros not compatible with Chromium headers."
-    echo "Chromium requires version $VERSION, but system provides $MAX_VERSION"
-    echo "or earlier."
-    return 1
-  fi
-  return 0
-}
-
-check_cros_version || EXITCODE=1
-
 exit $EXITCODE