mtd: rawnand: atmel: drop unused module alias

The driver only supports OF probing since commit f88fc12 ("mtd:
nand: Cleanup/rework the atmel_nand driver") so drop the unused platform
module alias.

Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

Author: jhovold

drivers/mtd/nand/raw/atmel/pmecc.c

@@ -1010,4 +1010,3 @@ module_platform_driver(atmel_pmecc_driver);
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Boris Brezillon <boris.brezillon@free-electrons.com>");
 MODULE_DESCRIPTION("PMECC engine driver");
-MODULE_ALIAS("platform:atmel_pmecc");