* lisp/password-cache.el (password-data): Use a hash-table

* lisp/password-cache.el (password-data): Use a hash-table

* lisp/auth-source.el (auth-source-magic): Remove.
(auth-source-forget+, auth-source-forget-all-cached): Adjust to new
format of password-data.
(auth-source-format-cache-entry): Just use a cons.

(password-cache-remove, password-cache-add, password-reset)
(password-read-from-cache, password-in-cache-p): Adjust accordingly.

Fixes: bug#26699