Delete prepare_psol.sh (#1310)

Replaced with install/build_psol.sh  in mod_pagespeed.
diff --git a/scripts/prepare_psol.sh b/scripts/prepare_psol.sh
deleted file mode 100755
index a2b2213..0000000
--- a/scripts/prepare_psol.sh
+++ /dev/null
@@ -1,94 +0,0 @@
-#!/bin/bash
-#
-# Copyright 2012 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-# Author: jefftk@google.com (Jeff Kaufman)
-#
-# Usage:
-#   scripts/prepare_psol.sh /path/to/mod_pagespeed/src
-#
-# Creates a directory psol/ and copies headers and a few source files from a
-# depot_tools (glient) checkout into psol/include.  Along with creating
-# binaries, this is a step in preparing psol.tar.gz for distribution.
-#
-
-set -u  # check for undefined variables
-set -e  # exit on failed commands
-
-if [ "$(basename "$PWD")" != "ngx_pagespeed" ] ; then
-  echo "$(basename $0) must be invoked from the ngx_pagespeed directory"
-  exit 1
-fi
-
-if [ $# -ne 1 ] ; then
-  echo "Usage: $(basename $0) /path/to/mod_pagespeed/src"
-  exit 1
-fi
-
-MOD_PAGESPEED_SRC="$1"
-
-if [ "$(basename "$(dirname "$MOD_PAGESPEED_SRC")")/$( \
-        basename "$MOD_PAGESPEED_SRC")" != "mod_pagespeed/src" ] ; then
-  echo "Usage: $(basename $0) /path/to/mod_pagespeed/src"
-  exit 1
-fi
-
-if [ -e psol ] ; then
-  echo "A psol/ directory already exists.  Move it somewhere else and rerun."
-  exit 1
-fi
-mkdir psol/
-# Copy over the .h files, plus a few selected .cc and .c files.
-rsync -arvz "$MOD_PAGESPEED_SRC/" "psol/include/" --prune-empty-dirs \
-  --exclude=".svn" \
-  --exclude=".git" \
-  --include='*.h' \
-  --include='*/' \
-  --include="apr_thread_compatible_pool.cc" \
-  --include="serf_url_async_fetcher.cc" \
-  --include="apr_mem_cache.cc" \
-  --include="key_value_codec.cc" \
-  --include="apr_memcache2.c" \
-  --include="loopback_route_fetcher.cc" \
-  --include="add_headers_fetcher.cc" \
-  --include="console_css_out.cc" \
-  --include="console_out.cc" \
-  --include="dense_hash_map" \
-  --include="dense_hash_set" \
-  --include="sparse_hash_map" \
-  --include="sparse_hash_set" \
-  --include="sparsetable" \
-  --include="mod_pagespeed_console_out.cc" \
-  --include="mod_pagespeed_console_css_out.cc" \
-  --include="mod_pagespeed_console_html_out.cc" \
-  --exclude='*'
-mkdir -p psol/lib/Debug/linux/ia32
-mkdir -p psol/lib/Debug/linux/x64
-mkdir -p psol/lib/Release/linux/ia32
-mkdir -p psol/lib/Release/linux/x64
-
-# Log that we did this.
-SVN_REVISION="$(svn info $MOD_PAGESPEED_SRC | grep Revision | awk '{print $2}')"
-SVN_TAG="$(svn info $MOD_PAGESPEED_SRC | grep URL |  awk -F/ '{print $(NF-1)}')"
-
-DATE="$(date +%F)"
-echo "${DATE}: Copied from mod_pagespeed ${SVN_TAG}@r${SVN_REVISION} ($USER)" \
-  >> psol/include_history.txt
-
-echo
-echo "Output is in psol/include.  Now put binaries in psol/lib following"
-echo "https://github.com/pagespeed/ngx_pagespeed/wiki/Building-Release-Binaries"
-echo "and then you can distribute PSOL."
-