openbmctool: remove simplejson req

This is no longer needed by openbmctool

Change-Id: Ia20b9989996a5c140b3f9e1425c3b83c10765c07
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>

Rename thalerj to openbmctool

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Change-Id: I26bdf55ba519f636b53912c740b005544a730f90