Don't duplicate UserSchema schema, use

backend/grant/user/models.py

@@ -248,29 +248,9 @@ class SelfUserSchema(ma.Schema):
 self_user_schema = SelfUserSchema()
 self_users_schema = SelfUserSchema(many=True)
 
+user_schema = SelfUserSchema(exclude=['email_address'])
+users_schema = SelfUserSchema(many=True, exclude=['email_address'])
 
-class UserSchema(ma.Schema):
-    class Meta:
-        model = User
-        # Fields to expose
-        fields = (
-            "title",
-            "social_medias",
-            "avatar",
-            "display_name",
-            "userid"
-        )
-
-    social_medias = ma.Nested("SocialMediaSchema", many=True)
-    avatar = ma.Nested("AvatarSchema")
-    userid = ma.Method("get_userid")
-
-    def get_userid(self, obj):
-        return obj.id
-
-
-user_schema = SelfUserSchema()
-users_schema = SelfUserSchema(many=True)
 
 class SocialMediaSchema(ma.Schema):
     class Meta: