sf: stmicro: drop redundant id read

The common SPI flash code reads the idcode and passes it down to the SPI
flash driver, so there is no need to read it again ourselves.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
CC: Jason McMullan <mcmullan@netapp.com>
CC: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
diff --git a/drivers/mtd/spi/stmicro.c b/drivers/mtd/spi/stmicro.c
index e7dda91..e401cd0 100644
--- a/drivers/mtd/spi/stmicro.c
+++ b/drivers/mtd/spi/stmicro.c
@@ -315,12 +315,6 @@
 	const struct stmicro_spi_flash_params *params;
 	struct stmicro_spi_flash *stm;
 	unsigned int i;
-	int ret;
-	u8 id[3];
-
-	ret = spi_flash_cmd(spi, CMD_READ_ID, id, sizeof(id));
-	if (ret)
-		return NULL;
 
 	for (i = 0; i < ARRAY_SIZE(stmicro_spi_flash_table); i++) {
 		params = &stmicro_spi_flash_table[i];
@@ -330,7 +324,7 @@
 	}
 
 	if (i == ARRAY_SIZE(stmicro_spi_flash_table)) {
-		debug("SF: Unsupported STMicro ID %02x\n", id[1]);
+		debug("SF: Unsupported STMicro ID %02x\n", idcode[1]);
 		return NULL;
 	}