Want to get rid of sda6_encrypt password on startup

Hello there, I've switched from windows 7 to Linux Mint Cinnamon 20. During installation I opted the LVM option and set password for that. Now, it requires that password at startup. But it, kind of, annoys.

Kindly help me get rid of this. If it is unavoidable, please help me remove the disk encryption option (LVM, as I think it is a disk encryption mechanism of Linux) at all.

Kind Regards.