Update overview.md

Removing reference to Automanage as we probably don't want customers to be using as it's being deprecated.

Author: gurrajatwal

articles/governance/machine-configuration/overview.md

@@ -24,7 +24,7 @@ such as:
 
 Configurations are distinct from policy definitions. Machine configuration uses Azure Policy to
 dynamically assign configurations to machines. You can also assign configurations to machines
-[manually][03], or by using other Azure services such as [Automanage][04].
+[manually][03].
 
 Examples of each scenario are provided in the following table.