[IA64] kill sys32_pipe

It's just a duplicate of the generic sys_pipe that still lacks the
recently added error handling.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Tony Luck <tony.luck@intel.com>

arch/ia64/ia32/ia32_entry.S

@@ -215,7 +215,7 @@ ia32_syscall_table:
 	data8 sys_mkdir
 	data8 sys_rmdir		  /* 40 */
 	data8 sys_dup
-	data8 sys32_pipe
+	data8 sys_pipe
 	data8 compat_sys_times
 	data8 sys_ni_syscall	  /* old prof syscall holder */
 	data8 sys32_brk		  /* 45 */