EDUCATOR-1705 Fix when profile_image is not available.

course_discovery/apps/publisher/templates/publisher/_personFieldLabel.html

 <div class="instructor" id="instructor_{{ staff.id }}">
     <input type="hidden" id="staff_{{ staff.id }}" name="staff" value="{{ staff.id }}">
-    <div><img src="{% if staff.profile_image_url %}{{ staff.profile_image_url }}{% else %}{{ staff.profile_image.url }}{% endif %}"></div>
+    <div><img src="{{ staff.get_profile_image_url }}"></div>
     <div><a class="delete" id="{{ staff.id }}" href="#"><i class="fa fa-trash-o fa-fw"></i></a>
         {% if course_user_role == 'course_team' %}
             {% if staff.position %}

course_discovery/static/js/publisher/instructors.js

@@ -247,12 +247,7 @@ $(document).on('click', '.selected-instructor a.edit', function (e) {
     $.getJSON({
         url: btnInstructor.data('url') + uuid,
         success: function (data) {
-            if ($.isEmptyObject(data['profile_image'])) {
-                $('.select-image').attr('src', data['profile_image_url']);
-            }
-            else {
-                $('.select-image').attr('src', data['profile_image']['medium']['url']);
-            }
+            $('.select-image').attr('src', data['profile_image']);
             $('#given-name').val(data['given_name']);
             $('#family-name').val(data['family_name']);
             $('#title').val(data['position']['title']);