PCI: Delete unused extern in powermac/pci.c
This file no longer uses pci_cache_line_size, so delete the declaration Signed-off-by: NMatthew Wilcox <matthew@wil.cx> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: NJeff Garzik <jeff@garzik.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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