!squash Fix test lint

Author: tony

tests/test_session.py

@@ -7,7 +7,7 @@
 import pytest
 
 from libtmux import Pane, Session, Window, exc
-from libtmux.common import has_gte_version, has_lt_version
+from libtmux.common import has_gte_version
 from libtmux.test import TEST_SESSION_PREFIX, namer
 
 logger = logging.getLogger(__name__)

tests/test_window.py

@@ -7,7 +7,7 @@
 import pytest
 
 from libtmux import Pane, Server, Window, exc
-from libtmux.common import has_gte_version, has_lt_version
+from libtmux.common import has_gte_version
 
 logger = logging.getLogger(__name__)