Using emacs27.1 and cscope on XUbuntu22.04, I get an error when looking for a function.

process-kill-without-query
process-kill-without-query is a compiled Lisp function in `subr.el'.

(process-kill-without-query PROCESS &optional FLAG)

This function is obsolete since 22.1;
use `process-query-on-exit-flag' or `set-process-query-on-exit-flag'.

Say no query needed if PROCESS is running when Emacs is exited.
Optional second argument if non-nil says to require a query.
Value is t if a query was formerly required. 

2. Solutions

Solution idea.
Replace all containing (process-kill-without-query xxx) with
as follows.

(process-query-on-exit-flag xxx)
or
(set-process-query-on-exit-flag xxx nil)

1. Replace all the files containing process-kill-without-query in /usr/share/dictionaries-common/site-elisp directory
debian-ispell.el flyspell.el ispell.el

2. replace all process-kill-without-query under ~/.emacs.d

3. delete all .elc files with process-kill-without-query