Remove stuff that I should have deleted during the rebase

lms/djangoapps/courseware/courses.py

@@ -142,59 +142,6 @@ def get_course_info_section(course, section_key):
 
     raise KeyError("Invalid about key " + str(section_key))
 
-def course_staff_group_name(course):
-    '''
-    course should be either a CourseDescriptor instance, or a string (the
-    .course entry of a Location)
-    '''
-    if isinstance(course, str) or isinstance(course, unicode):
-        coursename = course
-    else:
-        # should be a CourseDescriptor, so grab its location.course:
-        coursename = course.location.course
-    return 'staff_%s' % coursename
-
-def has_staff_access_to_course(user, course):
-    '''
-    Returns True if the given user has staff access to the course.
-    This means that user is in the staff_* group, or is an overall admin.
-    TODO (vshnayder): this needs to be changed to allow per-course_id permissions, not per-course
-    (e.g. staff in 2012 is different from 2013, but maybe some people always have access)
-
-    course is the course field of the location being accessed.
-    '''
-    if user is None or (not user.is_authenticated()) or course is None:
-        return False
-    if user.is_staff:
-        return True
-
-    # note this is the Auth group, not UserTestGroup
-    user_groups = [x[1] for x in user.groups.values_list()]
-    staff_group = course_staff_group_name(course)
-    if staff_group in user_groups:
-        return True
-    return False
-
-def has_staff_access_to_course_id(user, course_id):
-    """Helper method that takes a course_id instead of a course name"""
-    loc = CourseDescriptor.id_to_location(course_id)
-    return has_staff_access_to_course(user, loc.course)
-
-
-def has_staff_access_to_location(user, location):
-    """Helper method that checks whether the user has staff access to
-    the course of the location.
-
-    location: something that can be passed to Location
-    """
-    return has_staff_access_to_course(user, Location(location).course)
-
-def has_access_to_course(user, course):
-    '''course is the .course element of a location'''
-    if course.metadata.get('ispublic'):
-        return True
-    return has_staff_access_to_course(user,course)
-
 
 def get_courses_by_university(user, domain=None):
     '''