net-snk: Remoe some now unused "kernel" functions

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
js2x: Fix build

Add a dummy version.c to please the Makefile

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
net-snk: Remove pci/vio_config gunk

None of that is used anymore

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
net-snk: Remove snk_kernel_interface and related definitions

None of this if of any use anymore

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
net-snk: Remove insmod/rmmod

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
net-snk: Remove module system

It's not used anymore, let's just call directly into the relevant
OF functions. While at it, also make socket() actually return
an fd.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>