rtc: da9063: drop unused module alias

The driver only support OF probe so drop the unused platform module
alias.

Fixes: 80ca327 ("rtc: da9063: Add DA9062 RTC capability to DA9063 RTC driver")
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250423130318.31244-4-johan+linaro@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

Author: jhovold

drivers/rtc/rtc-da9063.c

@@ -495,4 +495,3 @@ module_platform_driver(da9063_rtc_driver);
 MODULE_AUTHOR("S Twiss <stwiss.opensource@diasemi.com>");
 MODULE_DESCRIPTION("Real time clock device driver for Dialog DA9063");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:" DA9063_DRVNAME_RTC);