pci/of: Remove dead code

	Commit 98d9f30c820d509145757e6ecbc36013aa02f7bc
"pci/of: Match PCI devices to OF nodes dynamically" introduced a lot of code
derived from the PPC PCI code, including some likes which were redundant.

Remove these lines.

Reviewed-by: William Towle <william.towle@codethink.co.uk>
Signed-off-by: Ian Molton <ian.molton@codethink.co.uk>
Signed-off-by: Grant Likely <grant.likely@linaro.org>

diff --cc drivers/of/of_pci_irq.c
Simple merge