Remove Unifi Network Server scripts (dead APT repo) (#12500)

* Initial plan

* remove Unifi (not unifi-os-server) CT, install, JSON, and header files

Co-authored-by: MickLesk <47820557+MickLesk@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: MickLesk <47820557+MickLesk@users.noreply.github.com>

ct/headers/unifi

@@ -1,6 +0,0 @@
-   __  __      _ _____ 
-  / / / /___  (_) __(_)
- / / / / __ \/ / /_/ / 
-/ /_/ / / / / / __/ /  
-\____/_/ /_/_/_/ /_/   
-                       

ct/unifi.sh

@@ -1,47 +0,0 @@
-#!/usr/bin/env bash
-source <(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/misc/build.func)
-# Copyright (c) 2021-2026 tteck
-# Author: tteck (tteckster)
-# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
-# Source: https://ui.com/download/unifi
-
-APP="Unifi"
-var_tags="${var_tags:-network;unifi}"
-var_cpu="${var_cpu:-2}"
-var_ram="${var_ram:-2048}"
-var_disk="${var_disk:-8}"
-var_os="${var_os:-debian}"
-var_version="${var_version:-12}"
-var_unprivileged="${var_unprivileged:-1}"
-
-header_info "$APP"
-variables
-color
-catch_errors
-
-function update_script() {
-  header_info
-  check_container_storage
-  check_container_resources
-  if [[ ! -d /usr/lib/unifi ]]; then
-    msg_error "No ${APP} Installation Found!"
-    exit
-  fi
-
-  JAVA_VERSION="21" setup_java
-
-  msg_info "Updating ${APP}"
-  $STD apt update --allow-releaseinfo-change
-  ensure_dependencies unifi
-  msg_ok "Updated successfully!"
-  exit
-}
-
-start
-build_container
-description
-
-msg_ok "Completed successfully!\n"
-echo -e "${CREATING}${GN}${APP} setup has been successfully initialized!${CL}"
-echo -e "${INFO}${YW} Access it using the following URL:${CL}"
-echo -e "${TAB}${GATEWAY}${BGN}https://${IP}:8443${CL}"