Martin Hjelmare 33663f9502 Clean up remote component (#8728)
* Clean up remote component

* Don't have device be required in send_command service and method.
* Don't have entity_id be required in the base service schema.
* Don't always add activity in the data dict for a service call.
* Update harmony remote platform according to new service schema.
* Remove not needed properties and attributes from the Kira remote
  platform.
* Add send_command method to demo platform.
* Add tests and remove duplicate tests.

* Break out required argument as positional argument
2017-07-31 20:52:39 -07:00
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2017-07-31 20:52:39 -07:00