[seahorse/mallard-help] help: Remove learn-about-keys section.

[Aruna Sankaranarayanan <arunasank src gnome org>]

commit 9f78dd1d17d1076f4f4200169401c513e006d0ce
Author: Aruna Sankaranarayanan <arunasank src gnome org>
Date:   Sat Sep 14 22:41:47 2013 +0530

    help: Remove learn-about-keys section.
    
    Remove the guide page.
    Important bits from pages that were listed here, are going to be scattered as
    notes in different pages so that help users can find the information
    they need on the same page, and also to reduce the content in the help.

 help/C/learn-about-keys.page |   29 -----------------------------
 1 files changed, 0 insertions(+), 29 deletions(-)