Revert "power, max8998: Include linux/module.h just once in drivers/power/max8998_charger.c"

This reverts commit ce64b8d8. It is done
via moduleh tree as part of a larger cleanup.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>

drivers/power/max8998_charger.c

@@ -21,6 +21,7 @@
 
 #include <linux/module.h>
 #include <linux/err.h>
+#include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/platform_device.h>
 #include <linux/power_supply.h>