Remove redundant pci_read_irq_line() function for 85xx CDS board.
This function has been realized in common ppc pci code.
Signed-off-by: NRoy Zang <tie-fei.zang@freescale.com>
Acked-by: NAndy Fleming <afleming@freescale.com>
Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>