media: rc: ir-rx51: drop of_match_ptr for ID table

The driver can match only via the DT table so the table should be always
used and the of_match_ptr does not have any sense (this also allows ACPI
matching via PRP0001, even though it might not be relevant here).  This
also fixes !CONFIG_OF error:

  drivers/media/rc/ir-rx51.c:264:34: error: ‘ir_rx51_match’ defined but not used [-Werror=unused-const-variable=]
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Sean Young <sean@mess.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/rc/ir-rx51.c

@@ -275,7 +275,7 @@ static struct platform_driver ir_rx51_platform_driver = {
 	.resume		= ir_rx51_resume,
 	.driver		= {
 		.name	= KBUILD_MODNAME,
-		.of_match_table = of_match_ptr(ir_rx51_match),
+		.of_match_table = ir_rx51_match,
 	},
 };
 module_platform_driver(ir_rx51_platform_driver);