chore: drop BM API

tests/test_remote_api.py

@@ -21,9 +21,3 @@ def test_ipdb():
 def test_steam(config):
     key = config["steam_api"]
     assert probe.test_steam_api(key)
-
-
-def test_bm(config):
-    # NOTE: see ticket #417; expected to return False
-    key = config["bm_api"]
-    assert probe.test_bm_api(key) is False