USB: OHCI: remove stale testing code from root-hub resume

This patch (as811) removes some stale testing code from the root-hub
resume routine in ohci-hcd.  It also adds a spin_lock_irq() call that
inadvertently got left out of an error pathway.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>