Revert "Add global toggle to use_cassette."

This reverts commit 366e2b75bb.

Conflicts:
	tests/unit/test_cassettes.py

tests/unit/test_cassettes.py

@@ -1,12 +1,8 @@
-from six.moves import http_client as httplib
-
 import pytest
 import yaml
 import mock
-
 from vcr.cassette import Cassette
 from vcr.errors import UnhandledHTTPRequestError
-from vcr import global_toggle
 
 
 def test_cassette_load(tmpdir):
@@ -73,11 +69,11 @@ def test_cassette_cant_read_same_request_twice():
 
 
 @mock.patch('vcr.cassette.requests_match', return_value=True)
-@mock.patch('vcr.cassette.load_cassette',
-            lambda *args, **kwargs: (('foo',), (mock.MagicMock(),)))
+@mock.patch('vcr.cassette.load_cassette', lambda *args, **kwargs: (('foo',), (mock.MagicMock(),)))
 @mock.patch('vcr.cassette.Cassette.can_play_response_for', return_value=True)
 @mock.patch('vcr.stubs.VCRHTTPResponse')
 def test_function_decorated_with_use_cassette_can_be_invoked_multiple_times(*args):
+    from six.moves import http_client as httplib
     @Cassette.use_cassette('test')
     def decorated_function():
         conn = httplib.HTTPConnection("www.python.org")
@@ -101,24 +97,6 @@ def test_cassette_all_played():
     a.play_response('foo')
     assert a.all_played
 
-@mock.patch('vcr.cassette.install')
-@mock.patch('vcr.cassette.reset')
-def test_global_toggle(mock_reset, mock_install):
-    @Cassette.use_cassette('test')
-    def function():
-        pass
-
-    global_toggle(enabled=False)
-
-    function()
-    assert mock_install.call_count == 0
-    assert mock_reset.call_count == 0
-
-    global_toggle(enabled=True)
-    function()
-    mock_install.assert_called_once_with(mock.ANY)
-    mock_reset.assert_called_once_with()
-
 
 def test_before_record_response():
     before_record_response = mock.Mock(return_value='mutated')
@@ -127,4 +105,3 @@ def test_before_record_response():
 
     before_record_response.assert_called_once_with('res')
     assert cassette.responses[0] == 'mutated'
-