Cleanup deprecated documentation

Since vincent mahe created a great
documentation available in doc/source
this one is deprecated

Change-Id: I81ff633771570f28a38e3d277718f0a97a9d5090

watcher/decision_engine/strategy/README.md

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-
-Basic Consolidation is based on Sercon : 
-
-Sercon: Server Consolidation Algorithm using Live Migration of Virtual Machines for Green Computing 
-Virtualization technologies changed the way data centers of enterprises utilize their server resources.
- 
-Instead of using dedicated servers for each type of application, virtualization allows viewing resources as a pool of
-unified resources, thereby reducing complexity and easing manageability.
- 
-Server consolidation technique,which deals with reducing the number of servers used by consolidating applications, is one of the main
-applications of virtualization in data centers.
-The latter technique helps to use computing resources more effectively and has many benefits,such as reducing costs of power, cooling and, hence, contributes to the
-Green IT initiative. 
-In a dynamic data center environment, where applications encapsulated as virtual machines
-are mapped to and released from the nodes frequently, reducing the number of server nodes used can be
-achieved by migrating applications without stopping their services, the technology known as live migration.
-
-However, live migration is a costly operation; hence, how to perform periodic server consolidation operation
-in a migration-aware way is a challenging task. 
-Sercon not only minimizes the overall number of used servers, but also minimizes the number of migrations. 
-
-Aziz Murtazaev and Sangyoon Oh
-Department of Computer and Information Engineering, Ajou University, Suwon, Korea