Remove test which is not longer valid

Author: meaksh

tests/pytests/unit/fileserver/test_roots.py

@@ -5,7 +5,6 @@
 import copy
 import os
 import pathlib
-import re
 import shutil
 import sys
 import textwrap
@@ -353,8 +352,3 @@ def test_relative_file_roots(tmp_state_tree):
         ret = roots.find_file("testfile")
         assert "testfile" == ret["rel"]
 
-
-def test_update_unexpected_kwargs():
-    with pytest.raises(ValueError) as exc_info:
-        ret = roots.update(foo="bar")
-    assert re.match(r"Unexpected keyword arguments received:", str(exc_info.value))