scheduled_task : Refactor extraneous methods from taskscheduler2.rb

There are a number of methods that don't provide any utility in taskscheduler2.rb

These are methods like:

• def self.principal(definition)

• def self.compatibility(definition)

• def self.set_compatibility(definition, value)

• def self.action_count(definition)

• def self.create_action(definition, action_type)

• def self.trigger_count(definition)

Given these methods all take the definition object, and provide little more than a light wrapper around it, they aren't particularly useful and additional layering to the class structure that is not necessary.