soc/mediatek/mt8173/i2c.c: Remove unused macro

Change-Id: I90fbd7ce0e1c6cd15d73cb73dc774df2de56b346
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82932
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
diff --git a/src/soc/mediatek/mt8173/i2c.c b/src/soc/mediatek/mt8173/i2c.c
index dd4629d..9cd20cf 100644
--- a/src/soc/mediatek/mt8173/i2c.c
+++ b/src/soc/mediatek/mt8173/i2c.c
@@ -60,8 +60,6 @@
 #define I2CLOG(fmt, arg...)
 #endif /* CONFIG_DEBUG_I2C */
 
-#define I2CERR(fmt, arg...)   printk(BIOS_ERR, I2CTAG fmt, ##arg)
-
 void mtk_i2c_bus_init(uint8_t bus)
 {
 	uint8_t step_div;