**Apache Airflow version**:
2.0.2

**Kubernetes version (if you are using kubernetes)** (use `kubectl version`):
v1.18.18

**Environment**:
Cloud provider or hardware configuration: AWS


**What happened**:

Updated to Airflow 2.0.2 and a new warning appeared in webserver logs:
```
WARNING - Exception when importing 'airflow.providers.google.common.hooks.leveldb.LevelDBHook' from 'apache-airflow-providers-google' package: No module named 'airflow.providers.google.common.hooks.leveldb'
```

**What you expected to happen**:
No warning.

**How to reproduce it**:
Don't know the specific details. Have tried adding `pip install --upgrade apache-airflow-providers-google` but the error was still there.

**Anything else we need to know**:
I am not using LevelDB for anything in my code, as a result I don't understand from where this error is coming.
tests/core/test_providers_manager.py
import unittest
from airflow.providers_manager import ProvidersManager
ALL_PROVIDERS = [
    'apache-airflow-providers-airbyte',
    'apache-airflow-providers-amazon',
    'apache-airflow-providers-apache-beam',
    'apache-airflow-providers-apache-cassandra',
    'apache-airflow-providers-apache-druid',
    'apache-airflow-providers-apache-hdfs',
    'apache-airflow-providers-apache-hive',
    'apache-airflow-providers-apache-kylin',
    'apache-airflow-providers-apache-livy',
    'apache-airflow-providers-apache-pig',
    'apache-airflow-providers-apache-pinot',
    'apache-airflow-providers-apache-spark',
    'apache-airflow-providers-apache-sqoop',
    'apache-airflow-providers-celery',
    'apache-airflow-providers-cloudant',
    'apache-airflow-providers-cncf-kubernetes',
    'apache-airflow-providers-databricks',
    'apache-airflow-providers-datadog',
    'apache-airflow-providers-dingding',
    'apache-airflow-providers-discord',
    'apache-airflow-providers-docker',
    'apache-airflow-providers-elasticsearch',
    'apache-airflow-providers-exasol',
    'apache-airflow-providers-facebook',
    'apache-airflow-providers-ftp',
    'apache-airflow-providers-google',
    'apache-airflow-providers-grpc',