Navigation bar: Drop user not logged in part
Navigation bar: Drop user not logged in part

As we have a Django app for the not-logged in area, the navigation bar
is only ever displayed when the user is logged in. Hence I remove this
confusing section, which led me to believe that might not be the case.

klinger/volunteer_planner,pitpalme/volunteer_planner,klinger/volunteer_planner,pitpalme/volunteer_planner,coders4help/volunteer_planner,christophmeissner/volunteer_planner,alper/volunteer_planner,alper/volunteer_planner,volunteer-planner/volunteer_planner,flindenberg/volunteer_planner,klinger/volunteer_planner,klinger/volunteer_planner,volunteer-planner/volunteer_planner,christophmeissner/volunteer_planner,coders4help/volunteer_planner,volunteer-planner/volunteer_planner,pitpalme/volunteer_planner,coders4help/volunteer_planner,volunteer-planner/volunteer_planner,flindenberg/volunteer_planner,coders4help/volunteer_planner,flindenberg/volunteer_planner,pitpalme/volunteer_planner,christophmeissner/volunteer_planner,christophmeissner/volunteer_planner,alper/volunteer_planner