[core] Remove unused imports of types

Author: cbentejac

meshroom/core/attribute.py

@@ -3,7 +3,6 @@
 import os
 import re
 import weakref
-import types
 import logging
 
 from collections.abc import Iterable, Sequence

meshroom/core/desc/attribute.py

@@ -1,7 +1,6 @@
 import ast
 import distutils.util
 import os
-import types
 from collections.abc import Iterable
 
 from meshroom.common import BaseObject, JSValue, Property, Variant, VariantList

meshroom/core/node.py

@@ -10,7 +10,6 @@
 import re
 import shutil
 import time
-import types
 import uuid
 from collections import namedtuple, OrderedDict
 from enum import Enum, auto