+ OCQualityOfService qos,
+ OCPayloadFormat acceptFormat,
+ const OCDevAddr *devAddr);
+
+/**
+ * Delete observer with specified token from list of observers.
+ * Free memory that was allocated for the observer in the list.
+ *
+ * @param token Token to search for.
+ * @param tokenLength Length of token.
+ *
+ * @return ::OC_STACK_OK on success, some other value upon failure.
+ */
+ OCStackResult DeleteObserverUsingToken (CAToken_t token, uint8_t tokenLength);