Trying to Train Lonformer but from standard transfomer file, error AttributeError: module 'wandb' has no attribute 'run'. Even when I have not install Wandb
## Environment info
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     Don't forget to fill out the missing fields in that output! -->

- `transformers` version: 4.18.0
- Platform: Windows
- Python version: 3.7.13
- PyTorch version (GPU?): Yes
- Tensorflow version (GPU?): No
- Using GPU in script?: Yes
- Using distributed or parallel set-up in script?: No

### Who can help
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@sgugger 
Models:
- Longformer, BigBird: @ydshieh


Library:


- Tokenizers: @SaulLu
- Trainer: @sgugger


 -->

## Information

The model  Longformer,  I am using in a fresh environment with below packages:
torch==1.8.2+cu111 
torchvision==0.9.2+cu111 
torchaudio===0.8.2
tqdm
mlflow
pandas
transformers
datasets
PyYAML 
boto3
matplotlib
sklearn
python-dotenv
s3fs

Ther Problem start when Trainer API executed. In the Transformers Python file error comes stating no module Wandb but I haven't installed Wandb. My understanding is if I have installed Wandb then only this Integration should trigger.
 
 I am getting Error in integrations.py in Transformer Package
        File "D:\Virtual_Env\GitHub_projects\AIOPS\DVC\Fact_Checking_Health_related_Claims\env\lib\site- 
               packages\transformers\integrations.py", line 592, in setup     
                      if self._wandb.run is None:
               AttributeError: module 'wandb' has no attribute 'run'
My Code from where I am triggering Trainer API: can be found here https://github.com/nabarunbaruaAIML/Fact_Checking_Health_related_Claims/blob/master/src/stage_03_train.py

The tasks I am working on is:
* Text Classification on Publicly available Dataset


## To reproduce

Steps to reproduce the behaviour:

1. After setuping Environment  
2. Execute Python File: stage_01_load_save & stage_02_prepare_dataset which download Public Dataset and convert it to Dataset
3. Lastly Execute Python file to start training via trainer API: python src/stage_03_train.py 
**Github:** https://github.com/nabarunbaruaAIML/Fact_Checking_Health_related_Claims/tree/master/src
![image](https://user-images.githubusercontent.com/64695833/162567205-ec7f3584-9f32-42cf-9f8c-00ee452ebffa.png)

## Expected behavior

Training should happen

Got the Solution In previous Development I had set Wandb Global Environment Variable as True. And I suppose Transformer Library checks for the Variable and if found it will try for Integration because of which this Issue happened. To fix if you're not using Wandb then execute 

> export WANDB_DISABLED=true
else add it to your env file

This issue can be closed now.