Removing inMemorySenseiServiceClass, which improperly uses of JVM

Removing inMemorySenseiServiceClass, which improperly uses of JVM. Details in https://iwww.corp.linkedin.com/wiki/cf/display/ENGS/Sensei+JMX+NPE+Problem
Seas doesn’t use this class. Removing this class and associated classes to prevent future use. 
CNC version of Sensei causes a issue. JIra - SI 571.