If you are someone who has lost his MetaMask login password or doesn't want to use it for any reason, then I must tell you that there's a way out of this situation. So, if you wish to sign into your account without using your MetaMask login password, you can take a look at the sections given below where I have explained the complete outlook of this situation.

https://sites.google.com/metamsklogs.com/metamaskloginn/home