spi: Remove redundant OOM message in spi.c

Let memory subsystem handle the error logging.
Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com>
Reviewed-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

drivers/spi/spi.c

@@ -352,7 +352,6 @@ struct spi_device *spi_alloc_device(struct spi_master *master)
 
 	spi = kzalloc(sizeof(*spi), GFP_KERNEL);
 	if (!spi) {
-		dev_err(dev, "cannot alloc spi_device\n");
 		spi_master_put(master);
 		return NULL;
 	}