diff --git a/mt7921/mcu.c b/mt7921/mcu.c
index f805c4a5..ef1e1ef9 100644
--- a/mt7921/mcu.c
+++ b/mt7921/mcu.c
@@ -93,9 +93,6 @@ struct mt7921_fw_region {
 #define PATCH_SEC_ENC_SCRAMBLE_INFO_MASK	GENMASK(15, 0)
 #define PATCH_SEC_ENC_AES_KEY_MASK		GENMASK(7, 0)
 
-#define to_wcid_lo(id)			FIELD_GET(GENMASK(7, 0), (u16)id)
-#define to_wcid_hi(id)			FIELD_GET(GENMASK(9, 8), (u16)id)
-
 static enum mcu_cipher_type
 mt7921_mcu_get_cipher(int cipher)
 {