doxygen: remove privilege from device_display_get_state()

- The privilege is removed since Tizen 2.4

Change-Id: I705f6038e0c5cbd5f540ec7fb6dd66cf8a53387f
Signed-off-by: Taeyoung Kim <ty317.kim@samsung.com>

diff --git a/include/display.h b/include/display.h
index db282e7..4ac44d1 100755 (executable)
--- a/include/display.h
+++ b/include/display.h
@@ -151,8 +151,6 @@ typedef enum
  * @brief Gets the current display state.
  *
  * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
- * @privlevel public
- * @privilege %http://tizen.org/privilege/display
  *
  * @param[out] state the display state
  *