Remove tag argument usage from helper scripts

The TC tags framework is discontinued [1], so all references to TC tags
will be invalidated once TC passes the change.

This patch removes the use of '--tag stable:follows-policy' from helper
scripts.

[1] http://lists.openstack.org/pipermail/openstack-discuss/2022-February/027214.html

Change-Id: I30645f45c270f436605ef5024557e341a6851dce

doc/source/reference/using.rst

@@ -965,7 +965,7 @@ list_stable_unreleased_changes.sh
 ---------------------------------
 
 Runs list_unreleased_changes.sh with the given branch for all
-repositories tagged with ``stable:follows-policy``.
+repositories.
 
 
 ::

tools/list_stable_unreleased_changes.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 #
-# Convenience wrapper to show the unreleased changes in all projects
-# claiming to have stable branches, so we don't have to remember the
+# Convenience wrapper to show the unreleased changes for a stable
+# $series in all projects, so we don't have to remember the
 # incantation.
 
 if [[ $# -ne 1 ]]; then
@@ -27,7 +27,6 @@ if [[ -z "$VIRTUAL_ENV" ]]; then
     source $BASEDIR/.tox/venv/bin/activate
 fi
 
-repos="$(list-deliverables --repos --tag stable:follows-policy \
-            --series $SERIES)"
+repos="$(list-deliverables --repos --series $SERIES)"
 
 $TOOLSDIR/list_unreleased_changes.sh stable/$SERIES $repos

tools/list_unreleased_and_open_changes.sh

@@ -12,8 +12,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-# Produce files for every team that has repositories with follow-policy
-# with the content of open and unreleased changes.
+# Produce files for every team that has repositories with the content of
+# open and unreleased changes.
 
 if [[ $# -lt 1 ]]; then
     echo "Usage: $(basename $0) <branch>"
@@ -49,7 +49,7 @@ function get_open_patches {
 for team in ${OPENSTACK_TEAMS}; do
     echo "Checking repositories of team: ${team}"
 
-    REPOS=$(tox -e venv -- list-deliverables --tag stable:follows-policy -r \
+    REPOS=$(tox -e venv -- list-deliverables --repos \
             --series ${BRANCH} --team ${team} | grep "^openstack/")
 
     if [ -n "${REPOS}" ]; then
@@ -61,7 +61,6 @@ for team in ${OPENSTACK_TEAMS}; do
                 ${RESULT_DIR}/${team}.txt
         done
     else
-        echo " Tag stable:follows-policy not found for repositories of team " \
-             "'${team}'"
+        echo " No repositories found for team '${team}'"
     fi
 done