Remove useless code about UserParty when importing scm data

In fact, we can get user party from their email, for example, we know he is from
"Intel" if his email ends with "intel.com", so it's useless to maintain UserParty

Change-Id: I54f5afb46e54573efd0616ebdd5fb42ade190c0d
Fixes: #1970
Merge branch 'devel' of /home/nemo/workspase/iris-panel into devel