mfd: ab8500-gpadc: Make it explicitly non-modular

The Kconfig currently controlling compilation of this code is:

drivers/mfd/Kconfig:config AB8500_GPADC
drivers/mfd/Kconfig:    bool "ST-Ericsson AB8500 GPADC driver"

...meaning that it currently is not being built as a module by anyone.

Lets remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only.

Since module_init was not in use by this code, the init ordering
remains unchanged with this commit.

We also delete the MODULE_LICENSE tag etc. since all that information
was (or is now) contained at the top of the file in the comments.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

drivers/mfd/ab8500-gpadc.c

@@ -5,9 +5,9 @@
  * Author: Arun R Murthy <arun.murthy@stericsson.com>
  * Author: Daniel Willerud <daniel.willerud@stericsson.com>
  * Author: Johan Palsson <johan.palsson@stericsson.com>
+ * Author: M'boumba Cedric Madianga
  */
 #include <linux/init.h>
-#include <linux/module.h>
 #include <linux/device.h>
 #include <linux/interrupt.h>
 #include <linux/spinlock.h>
@@ -1054,11 +1054,7 @@ static int __init ab8500_gpadc_init(void)
 {
 	return platform_driver_register(&ab8500_gpadc_driver);
 }
-
-static void __exit ab8500_gpadc_exit(void)
-{
-	platform_driver_unregister(&ab8500_gpadc_driver);
-}
+subsys_initcall_sync(ab8500_gpadc_init);
 
 /**
  * ab8540_gpadc_get_otp() - returns OTP values
@@ -1077,14 +1073,3 @@ void ab8540_gpadc_get_otp(struct ab8500_gpadc *gpadc,
 	*ibat_l  = gpadc->cal_data[ADC_INPUT_IBAT].otp_calib_lo;
 	*ibat_h  = gpadc->cal_data[ADC_INPUT_IBAT].otp_calib_hi;
 }
-
-subsys_initcall_sync(ab8500_gpadc_init);
-module_exit(ab8500_gpadc_exit);
-
-MODULE_LICENSE("GPL v2");
-MODULE_AUTHOR("Arun R Murthy");
-MODULE_AUTHOR("Daniel Willerud");
-MODULE_AUTHOR("Johan Palsson");
-MODULE_AUTHOR("M'boumba Cedric Madianga");
-MODULE_ALIAS("platform:ab8500_gpadc");
-MODULE_DESCRIPTION("AB8500 GPADC driver");