mfd: cros_ec: Drop unneeded MODULE_ALIAS

The MODULE_DEVICE_TABLE already creates proper alias.  Having another
MODULE_ALIAS causes the alias to be duplicated:

  $ modinfo cros_ec_dev.ko

  alias:          platform:cros-ec-dev
  srcversion:     F84A69D2156719A4F717A76
  alias:          platform:cros-ec-dev
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

drivers/mfd/cros_ec_dev.c

@@ -326,7 +326,6 @@ static void __exit cros_ec_dev_exit(void)
 module_init(cros_ec_dev_init);
 module_exit(cros_ec_dev_exit);
 
-MODULE_ALIAS("platform:" DRV_NAME);
 MODULE_AUTHOR("Bill Richardson <wfrichar@chromium.org>");
 MODULE_DESCRIPTION("Userspace interface to the Chrome OS Embedded Controller");
 MODULE_VERSION("1.0");