platform/chrome: wilco_ec: event: remove redundant MODULE_ALIAS

There is no platform driver in the file.  Remove the redundant
MODULE_ALIAS().
Reviewed-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240329075630.2069474-18-tzungbi@kernel.orgSigned-off-by: Tzung-Bi Shih <tzungbi@kernel.org>

drivers/platform/chrome/wilco_ec/event.c

@@ -575,4 +575,3 @@ module_exit(event_module_exit);
 MODULE_AUTHOR("Nick Crews <ncrews@chromium.org>");
 MODULE_DESCRIPTION("Wilco EC ACPI event driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:" DRV_NAME);