diff --git a/mock_tests/test_collection.py b/mock_tests/test_collection.py
index e9b51b0ec..a12c73570 100644
--- a/mock_tests/test_collection.py
+++ b/mock_tests/test_collection.py
@@ -1,12 +1,9 @@
 import datetime
-import json
-import time
 from typing import Any, Dict, Literal
 
 import grpc
 import pytest
 from pytest_httpserver import HTTPServer
-from werkzeug import Request, Response
 
 import weaviate
 import weaviate.classes as wvc
@@ -14,7 +11,6 @@
     MOCK_PORT,
     MOCK_IP,
     MOCK_PORT_GRPC,
-    CLIENT_ID,
     MockRetriesWeaviateService,
 )
 from weaviate.backup.backup import BackupStorage
@@ -76,77 +72,6 @@ def test_old_version(ready_mock: HTTPServer, start_grpc_server: grpc.Server) ->
     ready_mock.check_assertions()
 
 
-@pytest.mark.parametrize("header_name", ["Authorization", "authorization"])
-def test_auth_header_priority(
-    weaviate_auth_mock: HTTPServer, start_grpc_server: grpc.Server, header_name: str
-) -> None:
-    """Test that auth_client_secret has priority over the auth header."""
-    bearer_token = "OTHER TOKEN"
-
-    weaviate_auth_mock.expect_request("/auth").respond_with_json(
-        {"access_token": ACCESS_TOKEN, "expires_in": 500, "refresh_token": REFRESH_TOKEN}
-    )
-
-    def handler(request: Request) -> Response:
-        assert request.headers["Authorization"] == "Bearer " + ACCESS_TOKEN
-        return Response(json.dumps({}))
-
-    weaviate_auth_mock.expect_request("/v1/schema").respond_with_handler(handler)
-
-    with pytest.warns(UserWarning) as recwarn:
-        with weaviate.connect_to_local(
-            port=MOCK_PORT,
-            host=MOCK_IP,
-            grpc_port=MOCK_PORT_GRPC,
-            headers={header_name: "Bearer " + bearer_token},
-            auth_credentials=wvc.init.Auth.api_key("key"),
-        ) as _:
-            assert str(recwarn[0].message).startswith("Auth004")
-
-
-def test_auth_header_with_catchall_proxy(
-    weaviate_mock: HTTPServer, start_grpc_server: grpc.Server
-) -> None:
-    """Test that the client can handle situations in which a proxy returns a catchall page for all requests."""
-    weaviate_mock.expect_request("/v1/schema").respond_with_json({})
-    weaviate_mock.expect_request("/v1/.well-known/openid-configuration").respond_with_data(
-        "JsonCannotParseThis"
-    )
-
-    with pytest.warns(UserWarning) as recwarn:
-        weaviate.connect_to_local(
-            port=MOCK_PORT,
-            grpc_port=MOCK_PORT_GRPC,
-            host=MOCK_IP,
-            auth_credentials=wvc.init.Auth.bearer_token("token"),
-        )
-        assert str(recwarn[0].message).startswith("Auth005")
-
-
-def test_refresh(weaviate_auth_mock: HTTPServer, start_grpc_server: grpc.Server) -> None:
-    """Test that refresh tokens are used to get a new access token."""
-    weaviate_auth_mock.expect_request(
-        "/v1/schema", headers={"Authorization": "Bearer " + ACCESS_TOKEN}
-    ).respond_with_json({"classes": {}})
-
-    weaviate_auth_mock.expect_request(
-        "/auth",
-        data=f"grant_type=refresh_token&refresh_token={REFRESH_TOKEN}&client_id={CLIENT_ID}",
-    ).respond_with_json(
-        {"access_token": ACCESS_TOKEN, "expires_in": 1, "refresh_token": REFRESH_TOKEN}
-    )
-    with weaviate.connect_to_local(
-        port=MOCK_PORT,
-        grpc_port=MOCK_PORT_GRPC,
-        host=MOCK_IP,
-        auth_credentials=wvc.init.Auth.bearer_token(
-            ACCESS_TOKEN, refresh_token=REFRESH_TOKEN, expires_in=1
-        ),
-    ) as client:
-        time.sleep(1)  # client gets a new token 1s before expiration
-        client.collections.list_all()
-
-
 def test_closed_connection(weaviate_auth_mock: HTTPServer, start_grpc_server: grpc.Server) -> None:
     client = weaviate.WeaviateClient(
         ConnectionParams(