Simplify copy_thread()

First argument unused since 2.3.11.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index b80e02a..8aa591e 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -263,7 +263,7 @@
 }
 
 int
-copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
+copy_thread(unsigned long clone_flags, unsigned long usp,
 	    unsigned long unused,	/* in ia64 this is "user_stack_size" */
 	    struct task_struct * p, struct pt_regs * pregs)
 {