Staging: ipack: remove pr_fmt definition.

As there is no pr_* function used here, pr_fmt is not needed.
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/ipack/ipack.c

@@ -9,8 +9,6 @@
  * Software Foundation; version 2 of the License.
  */
 
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/idr.h>