Revert "Add VEHICLE_HVAC_FAN_DIRECTION_FACE_AND_FLOOR_FLAG"

This reverts commit ba48c5d3d366443a192297a17a585ee18080dda5.

Change-Id: I597222922a1d8fb80558cf090a0c7ce2b94e521e
diff --git a/include/hardware/vehicle.h b/include/hardware/vehicle.h
index 9e9f677..22c69bb 100644
--- a/include/hardware/vehicle.h
+++ b/include/hardware/vehicle.h
@@ -272,9 +272,8 @@
  * Bit flags for fan direction
  */
 enum vehicle_hvac_fan_direction_flags {
-    VEHICLE_HVAC_FAN_DIRECTION_FACE_FLAG            = 0x1,
-    VEHICLE_HVAC_FAN_DIRECTION_FLOOR_FLAG           = 0x2,
-    VEHICLE_HVAC_FAN_DIRECTION_FACE_AND_FLOOR_FLAG  = 0x3
+    VEHICLE_HVAC_FAN_DIRECTION_FACE_FLAG    = 0x1,
+    VEHICLE_HVAC_FAN_DIRECTION_FLOOR_FLAG   = 0x2
 };
 
 /**