wifi: brcmsmac: remove more unused data types

Remove unused 'struct brcmu_iovar' and 'struct tx_inst_power'. This
follows commit b2090d93 ("wifi: brcmsmac: remove unused data type").
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230725162400.192357-1-dmantipov@yandex.ru

drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_hal.h

@@ -141,11 +141,6 @@ struct tx_power {
 	u8 target[WL_TX_POWER_RATES];
 };
 
-struct tx_inst_power {
-	u8 txpwr_est_Pout[2];   /* Latest estimate for 2.4 and 5 Ghz */
-	u8 txpwr_est_Pout_gofdm;        /* Pwr estimate for 2.4 OFDM */
-};
-
 struct brcms_chanvec {
 	u8 vec[MAXCHANNEL / NBBY];
 };

drivers/net/wireless/broadcom/brcm80211/brcmsmac/types.h

@@ -288,15 +288,6 @@ struct tx_status;
 struct d11rxhdr;
 struct txpwr_limits;
 
-/* iovar structure */
-struct brcmu_iovar {
-	const char *name;	/* name for lookup and display */
-	u16 varid;	/* id for switch */
-	u16 flags;	/* driver-specific flag bits */
-	u16 type;	/* base type of argument */
-	u16 minlen;	/* min length for buffer vars */
-};
-
 /* brcm_msg_level is a bit vector with defs in defs.h */
 extern u32 brcm_msg_level;