Backport commit 24acb31c0 from Emacs

* doc/org-manual.org: Don't recommend to call package-initialize in
the init file.

Add early init file, stop package-initialize insertion
24acb31c04b4048b85311d794e600ecd7ce60d3b
Radon Rosborough
Sat Feb 17 13:36:16 2018 +0200

doc/org-manual.org

@@ -102,10 +102,8 @@ visited, i.e., where no Org built-in function have been loaded.
 Otherwise autoload Org functions will mess up the installation.
 #+end_quote
 
-Then, to make sure your Org configuration is taken into account,
-initialize the package system with =(package-initialize)= in your
-Emacs init file before setting any Org option.  If you want to use
-Org's package repository, check out the [[https://orgmode.org/elpa.html][Org ELPA page]].
+If you want to use Org's package repository, check out the [[https://orgmode.org/elpa.html][Org ELPA
+page]].
 
 *** Downloading Org as an archive
 :PROPERTIES: