Remove gating api import from course xmodule to avoid importing django related code into non-django related code

common/lib/xmodule/xmodule/course_module.py

@@ -14,7 +14,6 @@ from path import Path as path
 from xblock.core import XBlock
 from xblock.fields import Scope, List, String, Dict, Boolean, Integer, Float
 
-from openedx.core.lib.gating import api as gating_api
 from xmodule import course_metadata_utils
 from xmodule.course_metadata_utils import DEFAULT_START_DATE
 from xmodule.exceptions import UndefinedContext
@@ -1395,18 +1394,6 @@ class CourseDescriptor(CourseFields, SequenceDescriptor, LicenseMixin):
         """
         return datetime.now(UTC()) <= self.start
 
-    @property
-    def gating_prerequisites(self):
-        """
-        Course content that can be used to gate other course content within this course.
-
-        Returns:
-            list: Returns a list of dicts containing the gating milestone data
-        """
-        if not self._gating_prerequisites:
-            self._gating_prerequisites = gating_api.get_prerequisites(self.id)
-        return self._gating_prerequisites
-
 
 class CourseSummary(object):
     """