Remove pyflakes

Isn't borderline useless compared to mypy and pylint

libmat2/archive.py

@@ -11,9 +11,6 @@ from typing import Pattern, Union, Any
 
 from . import abstract, UnknownMemberPolicy, parser_factory
 
-# Make pyflakes happy
-assert Pattern
-
 # pylint: disable=not-callable,assignment-from-no-return,too-many-branches
 
 # An ArchiveClass is a class representing an archive,

libmat2/office.py

@@ -12,9 +12,6 @@ from .archive import ZipParser
 
 # pylint: disable=line-too-long
 
-# Make pyflakes happy
-assert Pattern
-
 def _parse_xml(full_path: str) -> tuple[ET.ElementTree, dict[str, str]]:
     """ This function parses XML, with namespace support. """
     namespace_map = dict()