delete HA and non-HA description in 105-User_Cases.rst

Change-Id: I1d1d596d27cd620cb0adc9c690b0426f4d6d211c

diff --git a/docs/requirements/105-Use_Cases.rst b/docs/requirements/105-Use_Cases.rst
index 9f13110..9183f0b 100644 (file)
--- a/docs/requirements/105-Use_Cases.rst
+++ b/docs/requirements/105-Use_Cases.rst
@@ -5,29 +5,6 @@ Use Cases
 This section describes the use cases in different system configuration
 to verify the requirements of Escalator.
 
-System Configurations
-=====================
-
-HA configuration
-^^^^^^^^^^^^^^^^
-
-A HA configuration system is very popular in the operator's data centre.
-It is a typical product environment. It is always running 7\*24 with VNFs
-running on it to provide services to the end users.
-
-
-Non-HA configuration
-^^^^^^^^^^^^^^^^^^^^
-
-A non-HA configuration system is normally deployed for experimental or
-development usages, such as a Vagrant/VM environment.
-
-Escalator supports the upgrade system in this configuration, but it may
-not guarantee a smooth upgrade.
-
-Use cases
-=========
-
 Use case #1: Smooth upgrade in a HA configuration
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 For a system with HA configuration, the operator can use Escalator to