Remove FileNotFoundError compatibility

jedi/api/file_name.py

@@ -1,6 +1,6 @@
 import os
 
-from jedi._compatibility import FileNotFoundError, force_unicode
+from jedi._compatibility import force_unicode
 from jedi.api import classes
 from jedi.api.strings import StringName, get_quote_ending
 from jedi.api.helpers import match

jedi/api/project.py

@@ -12,7 +12,7 @@ import errno
 import json
 import sys
 
-from jedi._compatibility import FileNotFoundError, PermissionError, \
+from jedi._compatibility import PermissionError, \
     IsADirectoryError, NotADirectoryError
 from jedi import debug
 from jedi.api.environment import get_cached_default_environment, create_environment