fix: remove instructor info serializer validation

cms/djangoapps/contentstore/rest_api/v1/serializers/course_details.py

@@ -7,20 +7,6 @@
 from openedx.core.lib.api.serializers import CourseKeyField
 
 
-class InstructorInfoSerializer(serializers.Serializer):
-    """ Serializer for instructor info """
-    name = serializers.CharField(allow_blank=True)
-    title = serializers.CharField(allow_blank=True, required=False)
-    organization = serializers.CharField(allow_blank=True, required=False)
-    image = serializers.CharField(allow_blank=True, required=False)
-    bio = serializers.CharField(allow_blank=True, required=False)
-
-
-class InstructorsSerializer(serializers.Serializer):
-    """ Serializer for instructors """
-    instructors = InstructorInfoSerializer(many=True, allow_empty=True)
-
-
 class CourseDetailsSerializer(serializers.Serializer):
     """ Serializer for course details """
     about_sidebar_html = serializers.CharField(allow_null=True, allow_blank=True)
@@ -40,7 +26,7 @@ class CourseDetailsSerializer(serializers.Serializer):
     entrance_exam_enabled = serializers.CharField(allow_blank=True)
     entrance_exam_id = serializers.CharField(allow_blank=True)
     entrance_exam_minimum_score_pct = serializers.CharField(allow_blank=True)
-    instructor_info = InstructorsSerializer()
+    instructor_info = serializers.DictField(allow_empty=True)
     intro_video = serializers.CharField(allow_null=True)
     language = serializers.CharField(allow_null=True)
     learning_info = serializers.ListField(child=serializers.CharField(allow_blank=True))