s390/uaccess: remove extra blank line

In order to get uaccess.c (nearly) checkpatch warning free remove an
extra blank line:

CHECK: Blank lines aren't necessary before a close brace '}'
+
+}
Reviewed-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

arch/s390/lib/uaccess.c

@@ -27,7 +27,6 @@ void debug_user_asce(int exit)
 	      "kernel: %016llx user: %016llx\n",
 	      exit ? "exit" : "entry", cr1, cr7,
 	      S390_lowcore.kernel_asce, S390_lowcore.user_asce);
-
 }
 #endif /*CONFIG_DEBUG_ENTRY */