PCI: push deprecated pci_find_device() function to last user

The ISDN4Linux HiSax driver family contains the last remaining users
of the deprecated pci_find_device() function. This patch creates a
private copy of that function in HiSax, and removes the now unused
global function together with its controlling configuration option,
CONFIG_PCI_LEGACY.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
diff --git a/drivers/isdn/hisax/nj_u.c b/drivers/isdn/hisax/nj_u.c
index d306c94..095e974 100644
--- a/drivers/isdn/hisax/nj_u.c
+++ b/drivers/isdn/hisax/nj_u.c
@@ -240,7 +240,7 @@
 
 	for ( ;; )
 	{
-		if ((dev_netjet = pci_find_device(PCI_VENDOR_ID_TIGERJET,
+		if ((dev_netjet = hisax_find_pci_device(PCI_VENDOR_ID_TIGERJET,
 			PCI_DEVICE_ID_TIGERJET_300,  dev_netjet))) {
 			ret = nju_pci_probe(dev_netjet, cs);
 			if (!ret)