Download: Remove "3rd party distributions" section

The BitNami link has been dead for at least a year, and the value of
pointing to a specific container image is questionable these days.

Discussion: https://www.postgresql.org/message-id/ahXFQU3N4TNDuG4b%40msg.df7cb.de

Author: df7cb

templates/pages/download.html

@@ -92,15 +92,6 @@ <h3>Beta/RC Releases and development snapshots (unstable)</h3>
 be used <strong>for testing purposes only</strong>, and not for production systems.
 </p>
 
-<h2>3rd party distributions</h2>
-
-<h3>Ready to run stacks</h3>
-<p>
-'LAPP', 'MAPP' and 'WAPP' (Linux/Mac/Windows + Apache + PHP + PostgreSQL)
-stacks are available from
-<a href="https://bitnami.com/tag/postgresql">BitNami</a>.
-</p>
-
 <h2>Additional Software</h2>
 
 <h3>Software Catalogue</h3>