openrisc: remove the redundant of_platform_populate

The of_platform_populate call in the openrisc arch code is now redundant
as the DT core provides a default call. Openrisc has a NULL match table
which means only top level nodes with compatible strings will have
devices creates. The default version will also descend nodes in the
match table such as "simple-bus" which should be fine as openrisc
doesn't have any of these (though it is preferred that memory-mapped
peripherals be grouped under a bus node(s)).

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Jonas Bonn <jonas@southpole.se>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Stafford Horne <shorne@gmail.com>

arch/openrisc/kernel/setup.c

@@ -38,7 +38,6 @@
 #include <linux/of.h>
 #include <linux/memblock.h>
 #include <linux/device.h>
-#include <linux/of_platform.h>
 
 #include <asm/sections.h>
 #include <asm/segment.h>
@@ -219,15 +218,6 @@ void __init or32_early_setup(void *fdt)
 	early_init_devtree(fdt);
 }
 
-static int __init openrisc_device_probe(void)
-{
-	of_platform_populate(NULL, NULL, NULL, NULL);
-
-	return 0;
-}
-
-device_initcall(openrisc_device_probe);
-
 static inline unsigned long extract_value_bits(unsigned long reg,
 					       short bit_nr, short width)
 {