intel_idle: remove definition of DEBUG

Defining DEBUG should only be done in development.
So remove DEBUG.

Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/idle/intel_idle.c

@@ -37,7 +37,7 @@
  */
 
 /* un-comment DEBUG to enable pr_debug() statements */
-#define DEBUG
+/* #define DEBUG */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt