Remove file that contained pathname specific to one developer's machine

Change-Id: Ia8eb3ad11c947bae64b5758fd4c0820bf3c09905

ios/lo.xcconfig

-// -*- Mode: make; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
-//
-// This file is part of the LibreOffice project.
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this
-// file, You can obtain one at http://mozilla.org/MPL/2.0/.
-BUILDDIR = /Users/ptyl/skunk/lo-core-poc/cloudon/release_ios/build
\ No newline at end of file