diff --git a/modules/usbaudio/audio_hal.c b/modules/usbaudio/audio_hal.c
index d0d43ab..d899d6b 100644
--- a/modules/usbaudio/audio_hal.c
+++ b/modules/usbaudio/audio_hal.c
@@ -55,11 +55,6 @@
 
 #define DEFAULT_INPUT_BUFFER_SIZE_MS 20
 
-// stereo channel count
-#define FCC_2 2
-// fixed channel count of 8 limitation (for data processing in AudioFlinger)
-#define FCC_8 8
-
 struct audio_device {
     struct audio_hw_device hw_device;