mmc: rtsx_pci: Drop if block with always false condition

rtsx_pci_sdmmc_drv_remove() is only called for a device after
rtsx_pci_sdmmc_drv_probe() returned 0. In that case platform_set_drvdata()
was called with a non-NULL value and so platform_get_drvdata()
won't return NULL.

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230727070051.17778-16-frank.li@vivo.comSigned-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/rtsx_pci_sdmmc.c

@@ -1529,9 +1529,6 @@ static int rtsx_pci_sdmmc_drv_remove(struct platform_device *pdev)
 	struct rtsx_pcr *pcr;
 	struct mmc_host *mmc;
 
-	if (!host)
-		return 0;
-
 	pcr = host->pcr;
 	pcr->slots[RTSX_SD_CARD].p_dev = NULL;
 	pcr->slots[RTSX_SD_CARD].card_event = NULL;