wifi: mt76: mt7915: remove VHT160 capability on MT7915

The IEEE80211_VHT_CAP_EXT_NSS_BW value already indicates support for half-NSS
160 MHz support, so it is wrong to also advertise full 160 MHz support.

Fixes: c2f73eac ("wifi: mt76: mt7915: add back 160MHz channel width support for MT7915")
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7915/init.c

@@ -414,7 +414,6 @@ mt7915_init_wiphy(struct mt7915_phy *phy)
 			if (!dev->dbdc_support)
 				vht_cap->cap |=
 					IEEE80211_VHT_CAP_SHORT_GI_160 |
-					IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
 					FIELD_PREP(IEEE80211_VHT_CAP_EXT_NSS_BW_MASK, 1);
 		} else {
 			vht_cap->cap |=