ips.c remove tqueue.h

It looks like the ips.c driver is still broken in 2.5.41 because of the task queue removal. Could you please apply this trivial patch so that my nightly tests of the bk snapshot will run?

Thanks,
Paul Larson

@@ -164,7 +164,6 @@
 #include <linux/pci.h>
 #include <linux/proc_fs.h>
 #include <linux/reboot.h>
-#include <linux/tqueue.h>
 #include <linux/interrupt.h>
 
 #include <linux/blk.h>