W&B: fix DDP with wandb disabled (#5163)

* fix dpp with wandb disabled

* PyCharm reformat

Co-authored-by: Glenn Jocher <glenn.jocher@ultralytics.com>

utils/loggers/wandb/wandb_utils.py

@@ -20,16 +20,6 @@ from utils.datasets import img2label_paths
 from utils.general import check_dataset, check_file
 
 RANK = int(os.getenv('RANK', -1))
-
-try:
-    import wandb
-
-    assert hasattr(wandb, '__version__')  # verify package import not local dir
-    if pkg.parse_version(wandb.__version__) >= pkg.parse_version('0.12.2') and RANK in [0, -1]:
-        wandb.login(timeout=30)
-except (ImportError, AssertionError):
-    wandb = None
-
 WANDB_ARTIFACT_PREFIX = 'wandb-artifact://'