removed old technical details from readme

Author: Mikalai Alimenkou

README.md

@@ -2,8 +2,4 @@ This is a set of samples for basic features of Hibernate covered in "Hibernate p
 
 Slides and video may be found here: http://jeeconf.com/program/hibernate-performance-tuning/.
 
-You are free to use and distribute them as is if you promise to run tests and understand how things work under the hood. ;)
-
-== TECHNICAL DETAILS ==
-
-If you want to run tests you should add VM option: -Drun-tests=true.
+You are free to use and distribute them as is if you promise to run tests and understand how things work under the hood. ;)