Partially Revert "ARM: shmobile: r8a7790: Add DU support"

This partially reverts commit 828a62ab9ea833de5af20d00586c1fc96d5364a6
("ARM: shmobile: r8a7790: Add DU support").
Specifically, it removes the redeclaration of "r8a7790_add_ether_device"
which was not present in the original patch that
828a62ab9ea833de5af20d00586c1fc96d5364a6
backports and should not have been added.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
1 file changed