realtek: pcs: rtl931x: drop unneeded cmu band read

There is still a stray call in setup_serdes to read the current CMU
band. The only effect is that the current band is printed to the log, the
value itself isn't used for anything further. Drop this since it's not
needed.

Signed-off-by: Jonas Jelonek <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/21858
Signed-off-by: Hauke Mehrtens <[email protected]>

target/linux/realtek/files-6.12/drivers/net/pcs/pcs-rtl-otto.c

@@ -3340,6 +3340,7 @@ static int rtpcs_931x_sds_cmu_band_set(struct rtpcs_serdes *sds,
 	return 0;
 }
 
+__maybe_unused
 static int rtpcs_931x_sds_cmu_band_get(struct rtpcs_serdes *sds,
 				       enum rtpcs_sds_mode hw_mode)
 {
@@ -3593,7 +3594,7 @@ static int rtpcs_931x_setup_serdes(struct rtpcs_serdes *sds,
 	struct rtpcs_serdes *even_sds = rtpcs_sds_get_even(sds);
 	struct rtpcs_ctrl *ctrl = sds->ctrl;
 	u32 sds_id = sds->id;
-	u32 band, val;
+	u32 val;
 	int ret;
 
 	/*
@@ -3629,9 +3630,6 @@ static int rtpcs_931x_setup_serdes(struct rtpcs_serdes *sds,
 
 	rtpcs_931x_sds_power(sds, false);
 
-	/* TODO: is this needed? */
-	band = rtpcs_931x_sds_cmu_band_get(sds, hw_mode);
-
 	ret = rtpcs_931x_sds_config_hw_mode(sds, hw_mode);
 	if (ret < 0)
 		return ret;