mtd: dataflash: remove duplicate SPI ID table

Building with -Werror=override-init reveals that two patches added
the same device ID table to this driver:

drivers/mtd/devices/mtd_dataflash.c:946:27: error: initialized field overwritten [-Werror=override-init]
946 | .id_table = dataflash_spi_ids,
| ^~~~~~~~~~~~~~~~~
drivers/mtd/devices/mtd_dataflash.c:946:27: note: (near initialization for 'dataflash_driver.id_table')

Remove one of the copies.

Fixes: 27a030e87292 ("mtd: dataflash: Add device-tree SPI IDs")
Fixes: ac4f83482afb ("mtd: dataflash: Add SPI ID table")
Signed-off-by: Arnd Bergmann <[e-mail]>
Acked-by: Uwe Kleine-König <[e-mail]>
Signed-off-by: Miquel Raynal <[e-mail]>
Link: https://lore.kernel.org/linux-mtd/[e-mail]

drivers/mtd/devices/mtd_dataflash.c

···
 	struct mtd_info		mtd;
 };
 
-static const struct spi_device_id dataflash_dev_ids[] = {
-	{ "at45" },
-	{ "dataflash" },
-	{ },
-};
-MODULE_DEVICE_TABLE(spi, dataflash_dev_ids);
-
 #ifdef CONFIG_OF
 static const struct of_device_id dataflash_dt_ids[] = {
 	{ .compatible = "atmel,at45", },
···
 		.name		= "mtd_dataflash",
 		.of_match_table = of_match_ptr(dataflash_dt_ids),
 	},
-	.id_table = dataflash_dev_ids,
-
 	.probe		= dataflash_probe,
 	.remove		= dataflash_remove,
 	.id_table	= dataflash_spi_ids,