Remove unused tools/tox_install.sh

This file is unused and unneeded, remove it - remove also line
mentioning it from tox.ini.

Change-Id: I653aa4aa2aacacc89f6a40e912921f930cd1fa62

tools/tox_install.sh

@@ -1,53 +0,0 @@
-#!/usr/bin/env bash
-
-# Library constraint file contains this library version pin that is in conflict
-# with installing the library from source.
-
-ZUUL_CLONER=/usr/zuul-env/bin/zuul-cloner
-BRANCH_NAME=master
-LIB_NAMES=(rsd-virt-for-nova nova)
-requirements_installed=$(echo "import openstack_requirements" | python 2>/dev/null ; echo $?)
-
-set -e
-
-CONSTRAINTS_FILE=$1
-shift
-
-install_cmd="pip install"
-mydir=$(mktemp -dt "rsd-virt-for-nova-tox_install-XXXXXXX")
-trap "rm -rf $mydir" EXIT
-localfile=$mydir/upper-constraints.txt
-if [[ $CONSTRAINTS_FILE != http* ]]; then
-    CONSTRAINTS_FILE=file://$CONSTRAINTS_FILE
-fi
-curl $CONSTRAINTS_FILE -k -o $localfile
-install_cmd="$install_cmd -c$localfile"
-
-if [ $requirements_installed -eq 0 ]; then
-    echo "Requirements already installed; using existing package"
-elif [ -x "$ZUUL_CLONER" ]; then
-    pushd $mydir
-    $ZUUL_CLONER --cache-dir \
-        /opt/git \
-        --branch $BRANCH_NAME \
-        git://git.openstack.org \
-        openstack/requirements
-    cd openstack/requirements
-    $install_cmd -e .
-    popd
-else
-    if [ -z "$REQUIREMENTS_PIP_LOCATION" ]; then
-        REQUIREMENTS_PIP_LOCATION="git+https://git.openstack.org/openstack/requirements@$BRANCH_NAME#egg=requirements"
-    fi
-    $install_cmd -U -e ${REQUIREMENTS_PIP_LOCATION}
-fi
-
-# This is the main purpose of the script: Allow local installation of
-# the current repo. It is listed in constraints file and thus any
-# install will be constrained and we need to unconstrain it.
-for LIB_NAME in "${LIB_NAMES[@]}"; do
-    edit-constraints $localfile $LIB_NAME
-done
-
-$install_cmd -U $*
-exit $?

tox.ini

@@ -12,7 +12,6 @@ skipsdist = True
 basepython = python3
 usedevelop = True
 install_command = pip install {opts} {packages}
-#{toxinidir}/tools/tox_install.sh {env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt} {opts} {packages}
 setenv =
    VIRTUAL_ENV={envdir}
    PYTHONWARNINGS=default::DeprecationWarning