change patch_http_call so we cant just pass it.

Author: Hellowlol

tests/conftest.py

@@ -175,8 +175,11 @@ def empty_response(mocker):
 
 
 @pytest.fixture()
-def patched_http_call():
-    return callable_http_patch()
+def patched_http_call(mocker):
+    return mocker.patch('plexapi.server.requests.sessions.Session.send',
+                        return_value=MagicMock(status_code=200,
+                                               text='<xml><child></child></xml>')
+                        )
 
 
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