documentation: remove all references to Hob

Hob and the packageinfo class have now been removed from the
code base. This patch removes all references to:

* Hob
* meta-hob
* packageinfo and
* BBLAYERS_NON_REMOVABLE

from the documentation.

So long, Hob, and thanks for all the fish.

(From yocto-docs rev: 6a1ba2761d5c2ec1072616ce3d791787f1b1b2a7)

Signed-off-by: Belen Barros Pena <belen.barros.pena@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 0 insertions, 4 deletions

diff --git a/documentation/ref-manual/introduction.xml b/documentation/ref-manual/introduction.xml
index 57e4a25853..e82f8340fb 100644
--- a/documentation/ref-manual/introduction.xml
+++ b/documentation/ref-manual/introduction.xml
@@ -192,10 +192,6 @@
             supported Linux distribution, instances might exist where you
             encounter a problem while using the Yocto Project on a specific
             distribution.
-            For example, the CentOS 6.4 distribution does not include the
-            Gtk+ 2.20.0 and PyGtk 2.21.0 (or higher) packages, which are
-            required to run
-            <ulink url='&YOCTO_HOME_URL;/tools-resources/projects/hob'>Hob</ulink>.
         </note>
     </section>