Do not create the kairos user by default (#1104)

packages/static/kairos-overlay-files/collection.yaml

@@ -1,4 +1,4 @@
 packages:
   - name: "kairos-overlay-files"
     category: "static"
-    version: "1.2.0"
+    version: "1.3.0"

packages/static/kairos-overlay-files/files/system/oem/09_openrc_services.yaml

@@ -111,7 +111,6 @@ stages:
           ╚═╝  ╚═╝╚═╝  ╚═╝╚═╝╚═╝  ╚═╝ ╚═════╝ ╚══════╝
                                                       
 
-          Welcome to kairos (login with user: kairos, password: kairos)
           Kernel \r on an \m (\l)
         permissions: 0755
         owner: 0

packages/static/kairos-overlay-files/files/system/oem/10_accounting.yaml

@@ -8,14 +8,6 @@ stages:
            group_name: "admin"
            password: "x"
            gid: 900
-    - name: "Setup users"
-      users:
-        kairos:
-          passwd: "!"
-          shell: /bin/bash
-          homedir: "/home/kairos"
-          groups:
-            - "admin"
     - name: "Set user password if running in live or uki"
       if: "[ -e /run/cos/live_mode ] || [ -e /run/cos/uki_install_mode ]"
       users: