Remove force ssl flag

It will break accessing localhost, e.g., by SVN

[ci skip]

lib/tasks/packager.rake

@@ -71,11 +71,6 @@ namespace :packager do
         ENV.fetch('SERVER_PROTOCOL', Setting.protocol)
       end
 
-    # Set https configured, set Rails force_ssl to true
-    if Setting.https?
-      shell_setup(['config:set', "OPENPROJECT_RAILS__FORCE__SSL=true"])
-    end
-
     # Run customization step, if it is defined.
     # Use to define custom postinstall steps required after each configure,
     # or to configure products.