rtc: stm32: drop unused module alias

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

Fixes: 4e64350f42e2 ("rtc: add STM32 RTC driver")
Signed-off-by: Johan Hovold <[e-mail]>
Reviewed-by: Krzysztof Kozlowski <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Alexandre Belloni <[e-mail]>

drivers/rtc/rtc-stm32.c

···
 
 module_platform_driver(stm32_rtc_driver);
 
-MODULE_ALIAS("platform:" DRIVER_NAME);
 MODULE_AUTHOR("Amelie Delaunay <[e-mail]>");
 MODULE_DESCRIPTION("STMicroelectronics STM32 Real Time Clock driver");
 MODULE_LICENSE("GPL v2");