brcm80211: fmac: remove id retrieve code

sdio_chip.c is dedicated to sdio bus chip. No need to retrieve id
for bus core
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c

@@ -474,8 +474,6 @@ static void
 brcmf_sdio_chip_buscoresetup(struct brcmf_sdio_dev *sdiodev,
 			     struct chip_info *ci)
 {
-	u32 regdata;
-
 	/* get chipcommon rev */
 	ci->c_inf[0].rev = ci->corerev(sdiodev, ci, ci->c_inf[0].id);
 
@@ -492,9 +490,6 @@ brcmf_sdio_chip_buscoresetup(struct brcmf_sdio_dev *sdiodev,
 	}
 
 	ci->c_inf[1].rev = ci->corerev(sdiodev, ci, ci->c_inf[1].id);
-	regdata = brcmf_sdcard_reg_read(sdiodev,
-				CORE_SB(ci->c_inf[1].base, sbidhigh), 4);
-	ci->c_inf[1].id = (regdata & SSB_IDHIGH_CC) >> SSB_IDHIGH_CC_SHIFT;
 
 	brcmf_dbg(INFO, "ccrev=%d, pmurev=%d, buscore rev/type=%d/0x%x\n",
 		  ci->c_inf[0].rev, ci->pmurev,