Remove dependency for md5.js

> For latest features support, please switch to [Azure Storage JavaScript SDK V10](https://github.com/Azure/azure-sdk-for-js/tree/master/sdk/storage).

### Which service(blob, file, queue, table) does this issue concern?
We're still relying azure-storage 2.10.7 until we can make the proper changes to migrate to V12. In particular we're using blob storage.

### Which version of the SDK was used?
azure-storage 2.10.7

### What's the Node.js/Browser version?
Node.js v14 backend only

### What problem was encountered?
Component Governance is flagging azure-storage 2.10.7 dependency on md5.js

### Steps to reproduce the issue?
Component Governance identifies azure-storage as a root dependency for md5.js

### Have you found a mitigation/solution?
Currently upgrading would solve the issue however the first attempts to migrate to v12 hasn't been successful.