Remove a keychain from search list?

Question

This is asked as a follow up as this SO:

Add a keychain to search list?

We know how to add a new create keychain to the search list by:

security list-keychains -s `security list-keychains | xargs` $NEW_KEYCHAIN

However, how do we remove it afterwords? After calling this multiple times (intentionally), we end up having this:

$ security list-keychains
"/Users/jenkins/Library/Keychains/login.keychain-db"
"/Users/jenkins/Library/Keychains/foo.keychain-db"
"/Users/jenkins/Library/Keychains/foo.keychain-db"
"/Library/Keychains/System.keychain"

Notice that we have multiple entries of foo.keychain-db there.

Answer 1

This may not be ideal, but we can simply call it again with the entries that we want to keep. For example, in this case:

$ security list-keychains -s /Users/jenkins/Library/Keychains/login.keychain-db /Library/Keychains/System.keychain

And it will be the result that we want:

$ security list-keychains
"/Users/jenkins/Library/Keychains/login.keychain-db"
"/Library/Keychains/System.keychain"