remove_gateway_setting()
- Remove a gateway setting from a database. Only settings owned by a calling gateway/plugin can be removed.
				
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			- params: setting_id (string).
- return: nothing
				
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			| Events | Description | 
|---|---|
| gateway_setting_removed | Inform subscribers about destroying a gateway setting. | 
				
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					require "core"
    core.remove_gateway_setting( "zwave.attempts" )				
			
             
                                    