Removing un-necessary tox.ini

Issue-ID: CCSDK-2833
Signed-off-by: Singal, Kapil (ks220y) <ks220y@att.com>
Change-Id: I9bef522e701af8ce4a09b4459875fadceac0cf5a
diff --git a/docs/conf.py b/docs/conf.py
index b389955..a81fb65 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -9,6 +9,8 @@
     'http://localhost',
 ]
 
+extensions = ['sphinx_tabs.tabs']
+
 intersphinx_mapping = {}
 
 html_last_updated_fmt = '%d-%b-%y %H:%M'