I removed Brave, but when I run apt-get update, it show some leftover.
Hit:6 https://brave-browser-apt-release.s3.brave.com stable InRelease
Err:6 https://brave-browser-apt-release.s3.brave.com stable InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A8580BDC82D3DC6C
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://brave-browser-apt-release.s3.brave.com stable InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A8580BDC82D3DC6C
W: Failed to fetch https://brave-browser-apt-release.s3.brave.com/dists/stable/InRelease The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A8580BDC82D3DC6C
How do I remove everything?