Remove the not used setup_docker.sh file

TrivalFix

Change-Id: I18a69d31c1b3442c79b7ffaab7259363600727e2

tools/setup_docker.sh

-#!/bin/bash
-#
-# This script is used to setup Kolla Docker environment,
-# after running this script, you can run Kolla functional test.
-# NOTE: This script was only tested on redhat/debian/suse platform families.
-#
-
-set -xu
-
-DOCKER_MIN_VERSION=1.6.0
-
-function check_prerequisites {
-    if [[ $EUID -ne 0 ]]; then
-        echo "You must execute this script as root." 1>&2
-        exit 1
-    fi
-    if [ "$OSTYPE" != "linux-gnu" ]; then
-        echo Platform not supported
-        exit 255
-    fi
-    if [ "$HOSTTYPE" != "x86_64" ]; then
-        echo Machine type not supported
-        exit 255
-    fi
-}
-
-function check_docker_version {
-    local docker_version
-    local result
-    if type docker &>/dev/null; then
-        docker_version=$(docker --version 2>/dev/null | awk -F"[ ,]" '{print $3}')
-        result=$(awk 'BEGIN{print '$docker_version' >= '$DOCKER_MIN_VERSION'}')
-        if [ $result = 1 ]; then
-            return 0
-        fi
-    fi
-    return 1
-}
-
-function start_docker {
-    pkill -x -9 docker
-    if check_docker_version; then
-        docker -d &>/dev/null &
-    else
-        curl -sSL https://get.docker.com/builds/Linux/x86_64/docker-$DOCKER_MIN_VERSION -o /usr/local/bin/docker
-        chmod +x /usr/local/bin/docker
-        /usr/local/bin/docker -d &>/dev/null &
-    fi
-}
-
-function create_group {
-    getent group docker
-    result=$?
-    if [ $result -eq 0 ]; then # 0: key already exists, nothing to do
-        return
-    elif [ $result -eq 2 ]; then # 2: key could not be found in database
-        groupadd docker
-        chown root:docker /var/run/docker.sock
-        usermod -a -G docker ${SUDO_USER:-$USER}
-    else
-        echo Unexpected failure: $result
-        exit
-    fi
-}
-
-# Check for root privileges and correct platform
-check_prerequisites
-
-# Start Docker service
-start_docker
-
-# Ensure executing user is placed in the docker group
-create_group