Revert "don't allow student to see answers"

This reverts commit abb7781.

Author: rockstarr-programmerr

classroom/serializers/question.py

@@ -6,7 +6,7 @@
 
 class ReadingQuestionSerializer(serializers.HyperlinkedModelSerializer):
     choices = serializers.ListField(source='get_choices_content')
-    answers = serializers.SerializerMethodField()
+    answers = serializers.ListField(source='get_answers_content')
 
     class Meta:
         model = ReadingQuestion
@@ -22,13 +22,6 @@ class Meta:
             'number': {'min_value': 1},
         }
 
-    def get_answers(self, question):
-        user = self.context['request'].user
-        if user.is_teacher():
-            return question.get_answers_content()
-        else:
-            return []  # Of course we can't allow student to see the answers
-
     def validate(self, attrs):
         attrs = super().validate(attrs)
         self._validate_question_not_exist(attrs)