Reenable flake8-pyi's Y011 and Y015 (#9551)

stubs/PyScreeze/pyscreeze/__init__.pyi

@@ -1,4 +1,3 @@
-import sys
 from _typeshed import Incomplete, StrOrBytesPath
 from collections.abc import Callable, Generator
 from typing import NamedTuple, SupportsFloat, TypeVar, overload
@@ -18,7 +17,7 @@ _R = TypeVar("_R")
 _Mat: TypeAlias = Incomplete
 
 useOpenCV: bool
-RUNNING_PYTHON_2 = sys.version_info < (3,)
+RUNNING_PYTHON_2: Literal[False]
 GRAYSCALE_DEFAULT: Literal[False]
 USE_IMAGE_NOT_FOUND_EXCEPTION: bool
 scrotExists: bool