Add the ability to remove services/characteristics

lib/platformAccessory.js

@@ -60,6 +60,28 @@ PlatformAccessory.prototype.addService = function(service) {
   return service;
 }
 
+PlatformAccessory.prototype.removeService = function(service) {
+  var targetServiceIndex;
+
+  for (var index in this.services) {
+    var existingService = this.services[index];
+    
+    if (existingService === service) {
+      targetServiceIndex = index;
+      break;
+    }
+  }
+
+  if (targetServiceIndex) {
+    this.services.splice(targetServiceIndex, 1);
+    service.removeAllListeners();
+
+    if (this._associatedHAPAccessory) {
+      this._associatedHAPAccessory.removeService(service);
+    }
+  }
+}
+
 /**
  * searchs for a Service in the services collection and returns the first Service object that matches.
  * If multiple services of the same type are present in one accessory, use getServiceByUUIDAndSubType instead.