remove new_arch in tox

Gate jobs related to new_arch have been removed, so it is
no longer required now.

Change-Id: Ib5550bfb00d0fd8213318899cbb73f2cda19c895

.testr.conf.new

@@ -1,7 +0,0 @@
-[DEFAULT]
-test_command=OS_STDOUT_CAPTURE=${OS_STDOUT_CAPTURE:-1} \
-             OS_STDERR_CAPTURE=${OS_STDERR_CAPTURE:-1} \
-             OS_TEST_TIMEOUT=${OS_TEST_TIMEOUT:-60} \
-             ${PYTHON:-python} -m subunit.run discover -t ./ ./congress/tests2 $LISTOPT $IDOPTION
-test_id_option=--load-list $IDFILE
-test_list_option=--list

tools/check_dot_testr_conf.sh

@@ -1,8 +0,0 @@
-#!/bin/sh
-
-target=$1
-
-if [ -e '.testr.conf' ] ; then
-    rm .testr.conf
-fi
-ln -s $target .testr.conf

tox.ini

@@ -1,7 +1,7 @@
 [tox]
 minversion = 1.6
 skipsdist = True
-envlist = py35,py34,py27,pep8,new_arch
+envlist = py35,py34,py27,pep8
 
 [testenv]
 usedevelop = True
@@ -15,25 +15,7 @@ setenv =
    LC_ALL=en_US.utf-8
 deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
-commands = 
- {toxinidir}/tools/check_dot_testr_conf.sh .testr.conf.old
- find . -type f -name "*.pyc" -delete
- python setup.py testr --slowest --testr-args='{posargs}'
-
-[testenv:new_arch]
-usedevelop = True
-
-install_command = pip install -U {opts} {packages}
-whitelist_externals = find
-setenv =
-   VIRTUAL_ENV={envdir}
-   LANG=en_US.UTF-8
-   LANGUAGE=en_US
-   LC_ALL=en_US.utf-8
-deps = -r{toxinidir}/requirements.txt
-       -r{toxinidir}/test-requirements.txt
-commands = 
- {toxinidir}/tools/check_dot_testr_conf.sh .testr.conf.new
+commands =
  find . -type f -name "*.pyc" -delete
  python setup.py testr --slowest --testr-args='{posargs}'