Remove unused imports

pkg_resources/__init__.py

@@ -28,8 +28,6 @@ import warnings
 import stat
 import functools
 import pkgutil
-import token
-import symbol
 import operator
 import platform
 import collections
@@ -67,11 +65,6 @@ try:
 except ImportError:
     importlib_machinery = None
 
-try:
-    import parser
-except ImportError:
-    pass
-
 from pkg_resources.extern import packaging
 __import__('pkg_resources.extern.packaging.version')
 __import__('pkg_resources.extern.packaging.specifiers')