cris:removed the unused variable

removed the unused variable "unsigned long tmp".
Signed-off-by: Wanlong Gao <wanlong.gao@gmail.com>
Signed-off-by: Jesper Nilsson <jespern@axis.com>

arch/cris/arch-v32/kernel/ptrace.c

@@ -114,8 +114,6 @@ void user_disable_single_step(struct task_struct *child)
 void
 ptrace_disable(struct task_struct *child)
 {
-	unsigned long tmp;
-
 	/* Deconfigure SPC and S-bit. */
 	user_disable_single_step(child);
 	put_reg(child, PT_SPC, 0);