[upstream] Remove agenda from slides

As we decided to be flexible with the agenda and organizing the blocks
the agenda in the slides is no longer accurate. This patch removes the
two slides with the agenda that we will edit on the training etherpad
during the introductions section.

Change-Id: I252a4d243e946e297c85ac53edf99c5936f0e91b

doc/upstream-training/source/slides/intro-introduction.rst

@@ -22,41 +22,6 @@ About the training
   - How to deploy OpenStack
   - How to prepare for different exams
 
-Agenda - Day 1
-==============
-
-- Introduction
-
-  - Introducing OpenStack as a Software
-  - Introducing OpenStack as a Community
-
-- How OpenStack is made
-
-  - Official OpenStack projects
-  - OpenStack Governance
-  - Release cycle
-  - Communication
-  - Events
-  - User Committee and Working Groups
-
-- Development environment setup
-
-Agenda - Day 2
-==============
-
-- Workflow of an OpenStack contribution and tools
-
-  - Overview of the contribution process
-  - Registration and accounts
-  - Tracking
-  - Gerrit
-  - Reviewing
-  - Commit Messages
-  - Project Status and Zuul
-  - Metrics
-  - Guide to SetUp and Push First Patch
-  - Using Sandbox for Practice
-
 Exercise
 ========
 
@@ -69,8 +34,8 @@ the course, etc.
    We will introduce ourselves first and then turn it over to them
    to talk to each other at their tables.
 
-Jump on IRC
-===========
+Jump on IRC and etherpad
+========================
 
 - Join the #openstack-101 channel
 
@@ -79,3 +44,6 @@ Jump on IRC
   - Use your IRC client or Web IRC:
 
     http://webchat.freenode.net/?channels=openstack-101
+
+- Open the `training etherpad <https://etherpad.openstack.org/p/upstream-institute-sydney-2017>`_
+  for team work