Drop Freezer

It's inactive and hasn't produced a 2024.1 release [1].
There are some efforts to restore Freezer, but let's remove it for now.

[1]: https://governance.openstack.org/tc/reference/emerging-technology-and-inactive-projects.html#current-inactive-projects

Change-Id: If2d034789d8c1128597c9072b4e82d14f72492e0

Author: mnasiadka

README.rst

@@ -77,7 +77,6 @@ Kolla provides images to deploy the following OpenStack projects:
 - `CloudKitty <https://docs.openstack.org/cloudkitty/latest/>`__
 - `Cyborg <https://docs.openstack.org/cyborg/latest/>`__
 - `Designate <https://docs.openstack.org/designate/latest/>`__
-- `Freezer <https://docs.openstack.org/freezer/latest/>`__
 - `Glance <https://docs.openstack.org/glance/latest/>`__
 - `Heat <https://docs.openstack.org/heat/latest/>`__
 - `Horizon <https://docs.openstack.org/horizon/latest/>`__

doc/source/matrix_aarch64.csv

@@ -13,7 +13,6 @@ designate,U,U,U
 dnsmasq,U,U,U
 etcd,U,U,U
 fluentd,U,U,U
-freezer,U,U,U
 glance,U,U,U
 gnocchi,U,U,U
 grafana,U,U,U

doc/source/matrix_x86.csv

@@ -13,7 +13,6 @@ designate,U,U,U
 dnsmasq,T,T,U
 etcd,T,T,U
 fluentd,T,T,T
-freezer,U,U,U
 glance,T,T,T
 gnocchi,U,U,U
 grafana,U,U,U

docker/freezer/freezer-api/Dockerfile.j2

@@ -69,14 +69,6 @@ function config_designate_dashboard {
     done
 }
 
-function config_freezer_ui {
-    for file in ${SITE_PACKAGES}/disaster_recovery/enabled/_*[^__].py; do
-        config_dashboard "${ENABLE_FREEZER:-no}" \
-            "${SITE_PACKAGES}/disaster_recovery/enabled/${file##*/}" \
-            "${SITE_PACKAGES}/openstack_dashboard/local/enabled/${file##*/}"
-    done
-}
-
 function config_heat_dashboard {
     for file in ${SITE_PACKAGES}/heat_dashboard/enabled/_*[^__].py; do
         config_dashboard "${ENABLE_HEAT:-no}" \
@@ -233,7 +225,6 @@ function settings_changed {
 config_blazar_dashboard
 config_cloudkitty_dashboard
 config_designate_dashboard
-config_freezer_ui
 config_heat_dashboard
 config_ironic_dashboard
 config_magnum_dashboard