cleanup(path-overrides): Remove unused directory

path-overrides/umount

@@ -1,33 +0,0 @@
-#!/bin/bash
-
-# 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.
-
-# Work around a bug on precise where gvfs trash goes looking in mounts
-# it shouldn't, resulting in the umount failing when it shouldn't.
-# See crosbug.com/23443 for the sordid details.
-
-suppressed_dir=$(dirname "$0")
-cleaned_path=$(echo "${PATH}" | sed -r -e "s,(^|:)${suppressed_dir}(:|$),,g")
-binary=$(PATH="${cleaned_path}" type -P umount)
-if [ $? -ne 0 ]; then
-  echo "umount: command not found" >&2
-  exit 127
-fi
-
-for x in {1..10}; do
-  # umount doesn't give use a distinct exit code for device is busy; thus grep
-  # the output.
-  output=$(LC_ALL=C "${binary}" "$@" 2>&1)
-  ret=$?
-  if [ ${ret} -eq 0 ] || [[ "${output}" != *"device is busy"* ]]; then
-    # Nothing to do in these scenarios; either ran fine, or it failed in a non
-    # busy fashion.
-    break
-  fi
-  sleep 1
-done
-
-echo -n "${output}" >&2
-exit ${ret}