iio: resolver: ad2s1210: remove DRV_NAME macro

The DRV_NAME macro is only used in one place in the ad2s1210 driver and
is not really needed so let's remove it.

Suggested-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://lore.kernel.org/r/20231012-ad2s1210-mainline-v1-1-b2ee31c0e9dd@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Author: dlech

drivers/iio/resolver/ad2s1210.c

@@ -68,8 +68,6 @@
 #include <linux/iio/trigger_consumer.h>
 #include <linux/iio/triggered_buffer.h>
 
-#define DRV_NAME "ad2s1210"
-
 /* control register flags */
 #define AD2S1210_ADDRESS_DATA		BIT(7)
 #define AD2S1210_PHASE_LOCK_RANGE_44	BIT(5)
@@ -1509,7 +1507,7 @@ MODULE_DEVICE_TABLE(spi, ad2s1210_id);
 
 static struct spi_driver ad2s1210_driver = {
 	.driver = {
-		.name = DRV_NAME,
+		.name = "ad2s1210",
 		.of_match_table = of_match_ptr(ad2s1210_of_match),
 	},
 	.probe = ad2s1210_probe,