We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
remove unused file from common
Motivation
----------
lib/rucio/common/client.py is probably unused and can be removed

Modification
------------


--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `lib/rucio/common/client.py`
Content:
```
1 # Copyright European Organization for Nuclear Research (CERN)
2 #
3 # Licensed under the Apache License, Version 2.0 (the "License");
4 # You may not use this file except in compliance with the License.
5 # You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
6 #
7 # Authors:
8 # - Vincent Garonne, <vincent.garonne@cern.ch>, 2012
9 
10 import httplib
11 
12 
13 class BaseClient(object):
14 
15     """A base client class"""
16 
17     DEFAULT_PORT = 80
18 
19     OK_RESPONSE_CODES = (
20         httplib.OK,
21         httplib.CREATED,
22         httplib.ACCEPTED,
23         httplib.NO_CONTENT,
24     )
25 
26     def __init__(self, host, port=None, use_ssl=False, auth_tok=None, creds=None):
27         """
28         Creates a new client to some service.
29 
30         :param host: The host where service resides
31         :param port: The port where service resides
32         :param use_ssl: Should we use HTTPS?
33         :param auth_tok: The auth token to pass to the server
34         :param creds: The credentials to pass to the auth plugin
35         """
36         self.host = host
37         self.port = port or self.DEFAULT_PORT
38         self.use_ssl = use_ssl
39         self.auth_tok = auth_tok
40         self.creds = creds or {}
41         self.connection = None
42
```
--- END FILES ---

Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.

Here is an example:

```diff
diff --git a/examples/server_async.py b/examples/server_async.py
--- a/examples/server_async.py
+++ b/examples/server_async.py
@@ -313,4 +313,4 @@
 
 
 if __name__ == "__main__":
-    asyncio.run(run_async_server("."), debug=True)
+    asyncio.run(run_async_server(), debug=True)
diff --git a/examples/server_sync.py b/examples/server_sync.py
--- a/examples/server_sync.py
+++ b/examples/server_sync.py
@@ -313,5 +313,5 @@
 
 
 if __name__ == "__main__":
-    server = run_sync_server(".")
+    server = run_sync_server()
     server.shutdown()

```

diff --git a/lib/rucio/common/client.py b/lib/rucio/common/client.py
deleted file mode 100644
--- a/lib/rucio/common/client.py
+++ /dev/null
@@ -1,41 +0,0 @@
-# Copyright European Organization for Nuclear Research (CERN)
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# You may not use this file except in compliance with the License.
-# You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
-#
-# Authors:
-# - Vincent Garonne, <vincent.garonne@cern.ch>, 2012
-
-import httplib
-
-
-class BaseClient(object):
-
-    """A base client class"""
-
-    DEFAULT_PORT = 80
-
-    OK_RESPONSE_CODES = (
-        httplib.OK,
-        httplib.CREATED,
-        httplib.ACCEPTED,
-        httplib.NO_CONTENT,
-    )
-
-    def __init__(self, host, port=None, use_ssl=False, auth_tok=None, creds=None):
-        """
-        Creates a new client to some service.
-
-        :param host: The host where service resides
-        :param port: The port where service resides
-        :param use_ssl: Should we use HTTPS?
-        :param auth_tok: The auth token to pass to the server
-        :param creds: The credentials to pass to the auth plugin
-        """
-        self.host = host
-        self.port = port or self.DEFAULT_PORT
-        self.use_ssl = use_ssl
-        self.auth_tok = auth_tok
-        self.creds = creds or {}
-        self.connection = None

{"golden_diff": "diff --git a/lib/rucio/common/client.py b/lib/rucio/common/client.py\ndeleted file mode 100644\n--- a/lib/rucio/common/client.py\n+++ /dev/null\n@@ -1,41 +0,0 @@\n-# Copyright European Organization for Nuclear Research (CERN)\n-#\n-# Licensed under the Apache License, Version 2.0 (the \"License\");\n-# You may not use this file except in compliance with the License.\n-# You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0\n-#\n-# Authors:\n-# - Vincent Garonne, <vincent.garonne@cern.ch>, 2012\n-\n-import httplib\n-\n-\n-class BaseClient(object):\n-\n-    \"\"\"A base client class\"\"\"\n-\n-    DEFAULT_PORT = 80\n-\n-    OK_RESPONSE_CODES = (\n-        httplib.OK,\n-        httplib.CREATED,\n-        httplib.ACCEPTED,\n-        httplib.NO_CONTENT,\n-    )\n-\n-    def __init__(self, host, port=None, use_ssl=False, auth_tok=None, creds=None):\n-        \"\"\"\n-        Creates a new client to some service.\n-\n-        :param host: The host where service resides\n-        :param port: The port where service resides\n-        :param use_ssl: Should we use HTTPS?\n-        :param auth_tok: The auth token to pass to the server\n-        :param creds: The credentials to pass to the auth plugin\n-        \"\"\"\n-        self.host = host\n-        self.port = port or self.DEFAULT_PORT\n-        self.use_ssl = use_ssl\n-        self.auth_tok = auth_tok\n-        self.creds = creds or {}\n-        self.connection = None\n", "issue": "remove unused file from common\nMotivation\r\n----------\r\nlib/rucio/common/client.py is probably unused and can be removed\r\n\r\nModification\r\n------------\r\n\n", "before_files": [{"content": "# Copyright European Organization for Nuclear Research (CERN)\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# You may not use this file except in compliance with the License.\n# You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0\n#\n# Authors:\n# - Vincent Garonne, <vincent.garonne@cern.ch>, 2012\n\nimport httplib\n\n\nclass BaseClient(object):\n\n    \"\"\"A base client class\"\"\"\n\n    DEFAULT_PORT = 80\n\n    OK_RESPONSE_CODES = (\n        httplib.OK,\n        httplib.CREATED,\n        httplib.ACCEPTED,\n        httplib.NO_CONTENT,\n    )\n\n    def __init__(self, host, port=None, use_ssl=False, auth_tok=None, creds=None):\n        \"\"\"\n        Creates a new client to some service.\n\n        :param host: The host where service resides\n        :param port: The port where service resides\n        :param use_ssl: Should we use HTTPS?\n        :param auth_tok: The auth token to pass to the server\n        :param creds: The credentials to pass to the auth plugin\n        \"\"\"\n        self.host = host\n        self.port = port or self.DEFAULT_PORT\n        self.use_ssl = use_ssl\n        self.auth_tok = auth_tok\n        self.creds = creds or {}\n        self.connection = None\n", "path": "lib/rucio/common/client.py"}], "after_files": [{"content": null, "path": "lib/rucio/common/client.py"}]}