include/uapi/linux/elf-em.h: remove v850

The v850 port was removed by commits f606ddf4 and 07a887d3 in
2008.  These #defines are not used in the current kernel.

Signed-off-by: Rob Landley <rob@landley.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>