Fix bridge-led support in limitlessled.py (#6776)

Addressing #6382 . Feedback from github & forums is the bridge_led feature never worked and defining the bridge LED as another group+bulb type is the right way to do this in the limitlessled component.

homeassistant/components/light/limitlessled.py

@@ -25,14 +25,13 @@ CONF_BRIDGES = 'bridges'
 CONF_GROUPS = 'groups'
 CONF_NUMBER = 'number'
 CONF_VERSION = 'version'
-CONF_BRIDGE_LED = 'bridge_led'
 
 DEFAULT_LED_TYPE = 'rgbw'
 DEFAULT_PORT = 5987
 DEFAULT_TRANSITION = 0
 DEFAULT_VERSION = 6
 
-LED_TYPE = ['rgbw', 'rgbww', 'white']
+LED_TYPE = ['rgbw', 'rgbww', 'white', 'bridge-led']
 
 RGB_BOUNDARY = 40
 
@@ -54,7 +53,6 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
             vol.Optional(CONF_VERSION,
                          default=DEFAULT_VERSION): cv.positive_int,
             vol.Optional(CONF_PORT, default=DEFAULT_PORT): cv.port,
-            vol.Optional(CONF_BRIDGE_LED, default=False): cv.boolean,
             vol.Required(CONF_GROUPS):  vol.All(cv.ensure_list, [
                 {
                     vol.Required(CONF_NAME): cv.string,
@@ -116,8 +114,6 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
                 group_conf.get(CONF_NAME),
                 group_conf.get(CONF_TYPE, DEFAULT_LED_TYPE))
             lights.append(LimitlessLEDGroup.factory(group))
-        if bridge_conf.get(CONF_BRIDGE_LED) and bridge.bridge_led is not None:
-            lights.append(LimitlessLEDGroup.factory(bridge.bridge_led))
     add_devices(lights)