Remove 3rd party promo/shareware instructions

Installation.md

@@ -33,18 +33,6 @@ Now proceed to [Manually Install Radarr](/Radarr/Radarr/wiki/Installation#manual
 
 If you are on Ubuntu 16.04 or earlier, you should also update your mediainfo to the latest using [the official releases](https://mediaarea.net/en/MediaInfo/Download/Ubuntu).
 
-### Ubuntu / Automated PlexGuide Installer ###
-
-NOTE: PlexGuide Installs Docker on your Machine
-
-1. Install PlexGuide from [https://plexguide.com](https://plexguide.com) - [GITHUB](https://github.com/Admin9705/PlexGuide.com-The-Awesome-Plex-Server) on a Clean UB16/UB18 machine
-2. Select "Program Suite Installer"
-3. Type either radarr, radarr4k ,or radarrhdr
-4. Radarr will install in under 15 seconds
-5. Follow screen instructions on how to access (example radarr - radarr.domain.com, ipv4:7878, domain:7878)
-
-![](https://plexguide.com/news/wp-content/uploads/2018/08/Snip20180824_87.png)
-
 ### Fedora / CentOS ###
 
 Install dependencies (Fedora):