docs-rst: don't require adjustbox anymore

Only the media PDF book was requiring adjustbox, in order to
scale big tables. That worked pretty good with Sphinx versions
1.4 and 1.5, but Spinx 1.6 changed the way tables are produced,
by introducing some weird macros before tabulary.
That causes adjustbox to fail. So, it can't be used anymore,
and its usage was removed from the media book.

So, let's remove it from conf.py and sphinx-pre-install.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

1 files changed, 0 insertions, 3 deletions

diff --git a/Documentation/conf.py b/Documentation/conf.py
index b986eda20a05..63857d33778c 100644
--- a/Documentation/conf.py
+++ b/Documentation/conf.py
@@ -277,9 +277,6 @@ latex_elements = {
         \\setromanfont{DejaVu Sans}
         \\setmonofont{DejaVu Sans Mono}
 
-	% To allow adjusting table sizes
-	\\usepackage{adjustbox}
-
      '''
 }