Resolve TODOs in Vehicle HAL interface

Fix: b/34109323

Test: comments changed
Change-Id: Ic00f43331fcaf4177e82fd33f05b095d45e7f8ad
diff --git a/vehicle/2.0/IVehicle.hal b/vehicle/2.0/IVehicle.hal
index 5b0df67..cab6ce0 100644
--- a/vehicle/2.0/IVehicle.hal
+++ b/vehicle/2.0/IVehicle.hal
@@ -99,9 +99,6 @@
    * primitives used (such as mutex locks or semaphores) must be acquired
    * with a timeout.
    *
-   * TODO(pavelm): we cannot use handle here due to Java compatibility, it's
-   * better to pass file descriptor and write debug data directly in vehicle HAL
-   * rather than passing back a string.
    */
   debugDump() generates (string s);
 };
diff --git a/vehicle/2.0/types.hal b/vehicle/2.0/types.hal
index 62521cb..52a6ace 100644
--- a/vehicle/2.0/types.hal
+++ b/vehicle/2.0/types.hal
@@ -332,7 +332,6 @@
      *
      * @change_mode VehiclePropertyChangeMode:ON_CHANGE
      * @access VehiclePropertyAccess:READ_WRITE
-     * @data_enum TODO
      * @allow_out_of_range_value : OFF
      */
     HVAC_FAN_SPEED = (
@@ -346,7 +345,7 @@
      *
      * @change_mode VehiclePropertyChangeMode:ON_CHANGE
      * @access VehiclePropertyAccess:READ_WRITE
-     * @data_enum TODO
+     * @data_enum VehicleHvacFanDirection
      * @allow_out_of_range_value : OFF
      */
     HVAC_FAN_DIRECTION = (