MT#65440 Obsolete KeyDB implementation

We no longer support KeyDB, and have switched to Valkey by default since
mr12.5.

We could add checks making sure the user/group and data directory do not
exist, but that would break on upgraded systems, were we do not remove
users by default, or data that might contain important information.

Change-Id: Iabe805c20468287dfeea8a4099f25df671affe17

templates/130_filesys-ngcp.yaml.tt2

@@ -406,21 +406,6 @@ file:
     linked-to: /ngcp-data/valkey
     filetype: symlink
 
-  /ngcp-data/keydb:
-    exists: true
-    mode: "0750"
-    owner: keydb
-    group: keydb
-    filetype: directory
-
-  /var/lib/keydb:
-    exists: true
-    mode: "0777"
-    owner: root
-    group: root
-    linked-to: /ngcp-data/keydb
-    filetype: symlink
-
   /ngcp-data/logs:
     exists: true
     mode: "0755"

templates/200_user-debian.yaml.tt2

@@ -3,9 +3,6 @@ group:
     exists: true
     gid: 1
 
-  keydb:
-    exists: true
-
   kamailio:
     exists: true
 
@@ -48,12 +45,6 @@ user:
         - "/var/run/kamailio"
         - "/run/kamailio"
 
-  keydb:
-    exists: true
-    groups:
-      - keydb
-    home: "/var/lib/keydb"
-
   mysql:
     exists: true
     groups: