GlobalTimerService does not properly cancel timers when undeploying kjar

When deployment unit (kjar) contains process definitions with timers they will not be properly removed on undeployment of that kjar. Best example are timer start event processes that will keep firing (not the actual process instance but its timer jobs) even though kjar has been removed from the environment.

When kjar is undeployed associated timers should be removed from global timer service correctly.