WifiPerformance: drop stale "Adding a New Device" guide

The step-by-step onboarding guide (manual UDEV rules, Tailscale VPN
enrolment, per-contributor NetBox site/device registration) no longer
reflects how devices join the lab. Onboarding is now handled by the
autotests scan-daemon discovering boards on the lab subnets and
reconciling NetBox. Remove the outdated section and point the Contribute
link at the armbian/autotests repo.

Signed-off-by: Igor Pecovnik <igor@armbian.com>

Author: igorpecovnik

docs/WifiPerformance.md

@@ -1419,154 +1419,12 @@ This section presents the performance test results, including key metrics and te
 
 ## Contribute
 
-- Assist us in developing and maintaining our testing system: Your expertise can help us enhance and optimize [our test infrastructure](https://github.com/armbian/armbian.github.io/actions/workflows/usb-wireless-autotest.yml). By contributing your skills, you can play a key role in ensuring the accuracy and reliability of our test results.
+- Assist us in developing and maintaining our testing system: Your expertise can help us enhance and optimize [our test infrastructure](https://github.com/armbian/autotests). By contributing your skills, you can play a key role in ensuring the accuracy and reliability of our test results.
 
 - Donate hardware: Your contribution of new hardware, whether it’s a wireless adapter or any other equipment, helps us expand our testing capabilities. We’re specifically looking for [new wireless adapters](https://www.amazon.de/hz/wishlist/ls/1GA17IGQ2MF0V?ref_=wl_share) that haven’t yet been added to our system. Your donation can directly impact the scope and depth of our tests.
 
 - Join our team: Become part of our passionate and dedicated team. We’re looking for [individuals who share our vision and are eager to contribute to the development of innovative testing solutions](https://forum.armbian.com/staffapplications/). Whether you have technical expertise or simply a willingness to learn, there’s a place for you here!
 
-
-## Adding a New Device
-
-This guide provides step-by-step instructions to add a new device (SBC SDIO, PCI or USB adapter) to the wireless testing infrastructure.
-
-### 1. Prepare the Host Machine
-
-- Ensure the board and wireless device is supported by Armbian.
-- Flash Armbian image and configure basic settings
-- Set hostname that reflects wireless test device (eg. rtl3070, wifiserver)
-
-```bash
-sudo hostnamectl set-hostname rtl3070
-```
-
-### 2. Identify Network Interfaces
-
-- Use `ip link` or `iw dev` to list available interfaces.
-- Identify MAC address and interface name (e.g., `wlan0`, `wlxMAC`, etc.).
-
-### 3. Create a UDEV Rule
-
-!!! warning
-
-    This step is only necessary if your network device does not have a predictable interface name.
-
-- Use a predictable name like `wl<MAC>` to avoid interface conflicts.
-- Add rule in `/etc/udev/rules.d/70-persistent-net.rules`:
-  
-```bash
-SUBSYSTEM=="net", ACTION=="add", ATTR{address}=="xx:xx:xx:xx:xx:xx", NAME="wl<MAC>"
-```
-
-### 4. Get VPN access
-
-The `TAILSCALE_AUTH_KEY` and access credentials for NetBox must be provided by the Armbian administration team. For assistance, please contact us via [https://www.armbian.com/contact/](https://www.armbian.com/contact/).
-
-### 5. Prepare the machine
-
-- Creates a new user (`ci`) with sudo privileges
-- Configures SSH for key-based authentication only
-- Installs and configures Tailscale for secure remote access
-- Installs `iperf3` for network performance testing
-
-```bash
-#!/bin/bash
-
-set -e
-
-USERNAME="ci"
-KEY_URL="https://github.armbian.com/ci.asc"
-TAILSCALE_AUTH_KEY="tskey-auth-kXXXXXXXXXXXXXXX-XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
-
-echo "[+] Creating user '$USERNAME' without password"
-useradd -m -s /bin/bash "$USERNAME"
-passwd -d "$USERNAME"
-usermod -aG sudo "$USERNAME"
-
-echo "[+] Setting up SSH key from $KEY_URL"
-SSH_DIR="/home/$USERNAME/.ssh"
-mkdir -p "$SSH_DIR"
-curl -fsSL "$KEY_URL" -o "$SSH_DIR/authorized_keys"
-chmod 700 "$SSH_DIR"
-chmod 600 "$SSH_DIR/authorized_keys"
-chown -R "$USERNAME:$USERNAME" "$SSH_DIR"
-
-echo "[+] Disabling password authentication in SSH config"
-sed -i 's/^#*\s*PasswordAuthentication.*/PasswordAuthentication no/' /etc/ssh/sshd_config
-sed -i 's/^#*\s*PermitEmptyPasswords.*/PermitEmptyPasswords no/' /etc/ssh/sshd_config
-systemctl restart ssh
-
-echo "[+] Installing Tailscale"
-curl -fsSL https://tailscale.com/install.sh | sh
-
-echo "[+] Bringing up Tailscale with provided auth key"
-tailscale up --auth-key="$TAILSCALE_AUTH_KEY"
-
-echo "[+] Installing iperf3 (non-interactive, no daemon)"
-export DEBIAN_FRONTEND=noninteractive
-apt-get update -qq
-apt-get install -yqq iperf3
-
-echo "[✔] Setup complete. User '$USERNAME' added, SSH key installed, Tailscale connected."
-```
-
-### 6. Register Your Location
-
-Access: <https://netbox.armbian.com/dcim/sites/>
-
-- Sites in NetBox represent physical locations of wireless test equipment.
-- Each site have devices such as Access Points (APs), iperf3 servers, and wireless test clients.
-- Register your testing location first if it doesn't exist yet. Create a new site with a clear name (e.g., Office Berlin, Lab Maribor) and add necessary data.
-
-!!! warning
-    Make sure to check if site is not already define to not clutter database!
-
-???+ success "Update Relevant Information"
-
-    - Access point SSID: `Your SSID`
-    - Iperf3 server IP: your local `IP address` that runs iperf3 server and can be accessible from wireless client
-
-### 7. Register Device Type
-
-Add [new device type](https://netbox.armbian.com/dcim/manufacturers/61/) 
- 
-???+ success "Relevant data"
-
-    - Model name (CAPS): AIC8800
-    - Manufacturer: Generic
-    - Add image of the device in full HD (1920x1080) with exact same name as model AIC8800.png (CAPS name, lowercase extension)
-
-!!! warning
-
-    Skip this step if WiFi SoC already exists in database.
-
-### 8. Register Device
-
-???+ success "Relevant data"
- 
-    - Name: Compex WLE900VX (use commercial name)
-    - Device role: WiFi DUT
-    - Tags: USB Wireless
-    - Manufacturer: Generic
-    - Device type: AIC8800 (select the one you added previously)
-    - Serial number: 04:f0:21:2c:75:14 (MAC address)
-    - Location: where you are
-    - Site: name of your office, defined in previous step
-    - Custom Fields / class: AC (wifi classes: AX, AC, N)
-
-- Add virtual interface (Add Components -> Interfaces)
-
-???+ success "Relevant data"
-
-    - Name: `tailscale0`
-    - Type: `virtual`
-
-Then select interface `tailscale0` and add `IP address`. Copy `IP address` from your device (example: 100.115.0.58/32) and select: Make this the primary IP for the device/VM
-
-### 9. Run Initial Test
-
-Run the [Wireless Performance Autotest workflow](https://github.com/armbian/armbian.github.io/actions/workflows/wireless-performance-autotest.yml) to verify whether the newly added device has been included in the test pool.
-
 ## Other resources
 
 - [USB WiFi Adapter Information for Linux](https://github.com/morrownr/USB-WiFi)