qtnfmac: Remove unused macro QTNF_DMP_MAX_LEN

There is no caller in tree, so remove it.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200909135951.4028-1-yuehaibing@huawei.com

drivers/net/wireless/quantenna/qtnfmac/core.c

@@ -15,7 +15,6 @@
 #include "util.h"
 #include "switchdev.h"
 
-#define QTNF_DMP_MAX_LEN 48
 #define QTNF_PRIMARY_VIF_IDX	0
 
 static bool slave_radar = true;