bug#46326: 27.1.50; Excessive memory allocations with minibuffer-with-setup-hook

[jakanakaevangeli]

I seem to have solved the problem by doing the following simple
substitutions in add-hook and remove-hook:

        (alist-get ... #'equal) -> (alist-get ...)
        equal -> eq
        member -> memq
        delete -> delq

This changes the behaviour of add/remove-hook a little, for example

        (add-hook    (lambda () (test)))
        (remove-hook (lambda () (test)))

will not be reverse operations anymore, since the two lambdas are not eq
as they are created separately. But the performance gain for big
non-compiled closures might be worth considering.