remove unneeded unit-tests for readline on py3.13 (#3400)

tests/unit_tests/test_readline.py

@@ -1,21 +0,0 @@
-from __future__ import annotations
-
-import sys
-
-import pwndbg  # noqa: F401
-
-from .mocks import gdb  # noqa: F401
-from .mocks import gdblib  # noqa: F401
-
-
-def test_readline_not_imported():
-    """
-    Importing CPython readline breaks GDB's use of GNU readline.
-    This breaks GDB tab autocomplete.
-
-    It's easy to accidentally import something that imports readline far down
-    the dependency chain. This test ensures we don't ever do that.
-
-    For more info see https://github.com/pwndbg/pwndbg/issues/2232
-    """
-    assert "readline" not in sys.modules