diff --git a/neutron/tests/contrib/post_test_hook.sh b/neutron/tests/contrib/post_test_hook.sh
index fbb305efc48..201503bb19c 100644
--- a/neutron/tests/contrib/post_test_hook.sh
+++ b/neutron/tests/contrib/post_test_hook.sh
@@ -60,10 +60,6 @@ fi
 cd $NEUTRON_DIR
 sudo chown -R $owner:stack $NEUTRON_DIR
 
-# NOTE(armax): this is a gate hook and we should run in a constrained env
-# to avoid breakage from uncontrolled upper constraints
-venv=$venv-constraints
-
 # Run tests
 echo "Running neutron $venv test suite"
 set +e
diff --git a/tools/configure_for_func_testing.sh b/tools/configure_for_func_testing.sh
index 3bedf0902eb..e6d1957dcb1 100755
--- a/tools/configure_for_func_testing.sh
+++ b/tools/configure_for_func_testing.sh
@@ -51,11 +51,6 @@ done
 # Default to environment variables to permit the gate_hook to override
 # when sourcing.
 VENV=${VENV:-dsvm-functional}
-# If executed in the gate, run in a constrained env
-if [[ "$IS_GATE" == "True" && "$USE_CONSTRAINT_ENV" == "True" ]]
-then
-    VENV=$VENV-constraints
-fi
 DEVSTACK_PATH=${DEVSTACK_PATH:-$1}
 PROJECT_NAME=${PROJECT_NAME:-neutron}
 REPO_BASE=${GATE_DEST:-$(cd $(dirname "$0")/../.. && pwd)}
diff --git a/tox.ini b/tox.ini
index 7c739b3f8a7..08ff6c32348 100644
--- a/tox.ini
+++ b/tox.ini
@@ -25,24 +25,11 @@ setenv = {[testenv]setenv}
          TEMPEST_CONFIG_DIR={env:TEMPEST_CONFIG_DIR:/opt/stack/tempest/etc}
          OS_TEST_API_WITH_REST=1
 
-[testenv:api-constraints]
-basepython = {[testenv:api]basepython}
-passenv = {[testenv:api]passenv}
-setenv = {[testenv:api]setenv}
-
 [testenv:common]
 # Fake job to define environment variables shared between dsvm/non-dsvm jobs
 setenv = OS_TEST_TIMEOUT=180
 commands = false
 
-# TODO(ihrachys): remove this target once it is not used in gate
-[testenv:py27-constraints]
-basepython = python2.7
-
-# TODO(ihrachys): remove this target once it is not used in gate
-[testenv:py34-constraints]
-basepython = python3.4
-
 [testenv:dsvm]
 # Fake job to define environment variables shared between dsvm jobs
 setenv = OS_SUDO_TESTING=1
@@ -60,12 +47,6 @@ deps =
   {[testenv]deps}
   -r{toxinidir}/neutron/tests/functional/requirements.txt
 
-[testenv:functional-constraints]
-basepython = {[testenv:functional]basepython}
-setenv = {[testenv:functional]setenv}
-deps =
-  {[testenv:functional]deps}
-
 [testenv:functional-py34]
 basepython = python3.4
 setenv = {[testenv:functional]setenv}
@@ -83,16 +64,6 @@ commands =
   {toxinidir}/tools/deploy_rootwrap.sh {toxinidir} {envdir}/etc {envdir}/bin
   {toxinidir}/tools/ostestr_compat_shim.sh {posargs}
 
-[testenv:dsvm-functional-constraints]
-basepython = {[testenv:dsvm-functional]basepython}
-setenv = {[testenv:dsvm-functional]setenv}
-sitepackages={[testenv:dsvm-functional]sitepackages}
-deps =
-  {[testenv:functional-constraints]deps}
-commands =
-  {toxinidir}/tools/deploy_rootwrap.sh {toxinidir} {envdir}/etc {envdir}/bin
-  {toxinidir}/tools/ostestr_compat_shim.sh {posargs}
-
 [testenv:dsvm-functional-py34]
 basepython = python3.4
 setenv = {[testenv:dsvm-functional]setenv}
@@ -112,13 +83,6 @@ sitepackages=True
 deps =
   {[testenv:functional]deps}
 
-[testenv:dsvm-fullstack-constraints]
-setenv =
-  {[testenv:dsvm-fullstack]setenv}
-sitepackages={[testenv:dsvm-fullstack]sitepackages}
-deps =
-  {[testenv:functional-constraints]deps}
-
 [testenv:releasenotes]
 # TODO(ihrachys): remove once infra supports constraints for this target
 install_command = {toxinidir}/tools/tox_install.sh unconstrained {opts} {packages}
@@ -141,21 +105,6 @@ whitelist_externals =
   sh
   bash
 
-[testenv:pep8-constraints]
-basepython = {[testenv:pep8]basepython}
-deps =
-  {[testenv]deps}
-commands=
-  # If it is easier to add a check via a shell script, consider adding it in this file
-  sh ./tools/misc-sanity-checks.sh
-  {toxinidir}/tools/check_unit_test_structure.sh
-  # Checks for coding and style guidelines
-  flake8
-  sh ./tools/coding-checks.sh --pylint '{posargs}'
-  neutron-db-manage --config-file neutron/tests/etc/neutron.conf check_migration
-  {[testenv:genconfig]commands}
-whitelist_externals = {[testenv:pep8]whitelist_externals}
-
 [testenv:cover]
 # TODO(ihrachys): remove once infra supports constraints for this target
 install_command = {toxinidir}/tools/tox_install.sh unconstrained {opts} {packages}
@@ -169,18 +118,9 @@ commands =
 install_command = {toxinidir}/tools/tox_install.sh unconstrained {opts} {packages}
 commands = {posargs}
 
-# TODO(ihrachys): remove this target once it is not used in gate
-[testenv:venv-constraints]
-# TODO(ihrachys): remove once infra supports constraints for this target
-install_command = {toxinidir}/tools/tox_install.sh unconstrained {opts} {packages}
-commands = {posargs}
-
 [testenv:docs]
 commands = sphinx-build -W -b html doc/source doc/build/html
 
-[testenv:docs-constraints]
-commands = {[testenv:docs]commands}
-
 [flake8]
 # E125 continuation line does not distinguish itself from next logical line
 # E126 continuation line over-indented for hanging indent