Read/Write API token cannot create bucket, but can delete bucket

__Steps to reproduce:__
1. create a read/write token under 'my-org'
2. create a bucket called 'my-bucket' under 'my-org'
3. use the following code to delete the 'my-bucket'

```
bucket = client.buckets_api().find_buckets(org='my-org', name='my-bucket')
bucket = bucket.buckets[0]
client.buckets_api().delete_bucket(bucket)
```

__Expected behavior:__
The Read/Write API token should not have access to delete the bucket
Note: The Read/Write API token cannot create the bucket, which is expected

__Actual behavior:__
The 'my-bucket' has been deleted by a read/write api

__Specifications:__
- Client Version: 1.26.0
- InfluxDB Version: 2.1.1
- Platform: macos

Start by reproducing the bucket deletion with the stated Read/Write token, client version 1.26.0, and InfluxDB 2.1.1, then trace the bucket API's authorization decision. Done means a Read/Write token cannot delete a bucket, while its permitted operations continue to work.

Written by the indexing model from the issue text.