of: remove asm/of_device.h

It is mostly unused now.  Sparc has a few defines left in it, but they
can be moved to other headers.  Removing this header means that new
architectures adding CONFIG_OF support don't need to also add this
header file.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/include/asm/device.h b/arch/sparc/include/asm/device.h
index fb220e4..daa6a8a 100644
--- a/arch/sparc/include/asm/device.h
+++ b/arch/sparc/include/asm/device.h
@@ -19,6 +19,8 @@
 	int			numa_node;
 };
 
+extern void of_propagate_archdata(struct platform_device *bus);
+
 struct pdev_archdata {
 	struct resource		resource[PROMREG_MAX];
 	unsigned int		irqs[PROMINTR_MAX];