Remove tox_install.sh

This patch removes a legacy tool for installing tox which started
breaking stable branches based on openstack-requirements. This is a
handcrafted version of the following patch:

  If162dde93423a495064c4ae1a5dad4e7eb8f9577

This wasn't a direct cherry-pick due to the conflicts with refactoring
to use doc/requirements.txt

Change-Id: I8c726cc54aeab8fdad52bdaffa320bad4c5a5a28
(cherry picked from commit dfdd0789a6)

test-requirements.txt

@@ -23,3 +23,6 @@ testrepository>=0.0.18 # Apache-2.0/BSD
 testresources>=0.2.4 # Apache-2.0/BSD
 testtools>=1.4.0 # MIT
 PyYAML>=3.10.0 # MIT
+requests-kerberos>=0.6 # ISC
+lxml!=3.7.0,>=2.3 # BSD
+oauthlib>=0.6 # BSD

tools/tox_install.sh

@@ -1,30 +0,0 @@
-#!/usr/bin/env bash
-
-# Client constraint file contains this client version pin that is in conflict
-# with installing the client from source. We should remove the version pin in
-# the constraints file before applying it for from-source installation.
-
-CONSTRAINTS_FILE="$1"
-shift 1
-
-set -e
-
-# NOTE(tonyb): Place this in the tox enviroment's log dir so it will get
-# published to logs.openstack.org for easy debugging.
-localfile="$VIRTUAL_ENV/log/upper-constraints.txt"
-
-if [[ "$CONSTRAINTS_FILE" != http* ]]; then
-    CONSTRAINTS_FILE="file://$CONSTRAINTS_FILE"
-fi
-# NOTE(tonyb): need to add curl to bindep.txt if the project supports bindep
-curl "$CONSTRAINTS_FILE" --insecure --progress-bar --output "$localfile"
-
-pip install -c"$localfile" openstack-requirements
-
-# This is the main purpose of the script: Allow local installation of
-# the current repo. It is listed in constraints file and thus any
-# install will be constrained and we need to unconstrain it.
-edit-constraints "$localfile" -- "$CLIENT_NAME"
-
-pip install -c"$localfile" -U "$@"
-exit $?

tox.ini

@@ -5,16 +5,14 @@ envlist = py35,py27,pep8,releasenotes
 
 [testenv]
 usedevelop = True
-install_command = {toxinidir}/tools/tox_install.sh {env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt?h=stable/ocata} {opts} {packages}
 setenv = VIRTUAL_ENV={envdir}
-         BRANCH_NAME=master
-         CLIENT_NAME=keystoneauth1
          OS_STDOUT_NOCAPTURE=False
          OS_STDERR_NOCAPTURE=False
 
-deps = -r{toxinidir}/requirements.txt
-       -r{toxinidir}/test-requirements.txt
-       .[kerberos,saml2,betamax,oauth1]
+deps =
+    -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt?h=stable/ocata}
+    -r{toxinidir}/requirements.txt
+    -r{toxinidir}/test-requirements.txt
 commands = ostestr {posargs}
 
 [testenv:pep8]