Removed unused header files

Will cause symbol collisions when this repository's local
error yaml is copied out during building so phosphor-logging
includes it in its elog-errors.hpp.

Change-Id: Ic467418106d45b6b49b6cabec304c4ae64a3d76b
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
1 file changed