remove deprecated wandb env var (#2751)

* remove deprecated wandb env var

* remove os.environ wandb setting; unused loggers

* remove os.environ wandb setting; unused loggers

tests/e2e/patched/test_resume.py

@@ -2,7 +2,6 @@
 E2E tests for resuming training
 """
 
-import os
 import re
 import subprocess
 
@@ -13,13 +12,9 @@ from axolotl.common.datasets import load_datasets
 from axolotl.train import train
 from axolotl.utils.config import normalize_config, validate_config
 from axolotl.utils.dict import DictDefault
-from axolotl.utils.logging import get_logger
 
 from ..utils import check_model_output_exists, most_recent_subdir, require_torch_2_6_0
 
-LOG = get_logger("axolotl.tests.e2e")
-os.environ["WANDB_DISABLED"] = "true"
-
 
 class TestResumeLlama:
     """