x86: pmc-atom: Remove unused macro

DRIVER_NAME seems unused. This patch just removes it. There is no functional
change.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Aubrey Li <aubrey.li@linux.intel.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Kumar P. Mahesh <mahesh.kumar.p@intel.com>
Link: http://lkml.kernel.org/r/1421253575-22509-4-git-send-email-andriy.shevchenko@linux.intel.comSigned-off-by: Thomas Gleixner <tglx@linutronix.de>

arch/x86/kernel/pmc_atom.c

@@ -25,8 +25,6 @@
 
 #include <asm/pmc_atom.h>
 
-#define	DRIVER_NAME	KBUILD_MODNAME
-
 struct pmc_dev {
 	u32 base_addr;
 	void __iomem *regmap;