Revert "Added Unifi direct documentation"

This reverts commit ba7907f7841f854b2558780dfcbb5078bb9e4ad3.

source/_components/device_tracker.unifi_direct.markdown

@@ -1,36 +0,0 @@
----
-layout: page
-title: "Ubiquiti Unifi direct AP"
-description: "Instructions how to use a Unifi WAP as a device tracker."
-date: 2017-11-17 14:59
-sidebar: true
-comments: false
-sharing: true
-footer: true
-logo: ubiquiti.png
-ha_category: Presence Detection
-ha_release: 0.58
----
-
-
-This platform allows you to detect presence by looking at devices connected to a [UniFi AP](http://ubnt.com/unifi-ap/). This device tracker differs form [Ubiquiti Unifi WAP](https://home-assistant.io/components/device_tracker.unifi/) because it doesn't require the Unifi controller software.
-
-To use this device tracker in your installation, add the following to your `configuration.yaml` file:
-
-```yaml
-# Example configuration.yaml entry
-device_tracker:
-  - platform: unifi_direct
-    host: YOUR_AP_IP_ADDRESS
-    username: YOUR_USERNAME
-    password: YOUR_PASSWORD
-```
-
-Configuration variables:
-
-- **host** (*Required*): The hostname or IP address of your controller.
-- **username** (*Required*: The username used to connect to the AP.
-- **password** (*Required*): The password you created for the AP.
-
-See the [device tracker component page](/components/device_tracker/) for instructions how to configure the people to be tracked.
-