Don't call purecopy in emacs-lisp/*.el

Don't call purecopy in emacs-lisp/*.el

* lisp/emacs-lisp/byte-run.el (define-obsolete-face-alias)
(make-obsolete-variable, make-obsolete):
* lisp/emacs-lisp/cl-extra.el (cl-type-definition):
* lisp/emacs-lisp/cl-preloaded.el (cl-assertion-failed):
* lisp/emacs-lisp/cl-print.el (help-byte-code):
* lisp/emacs-lisp/derived.el (define-derived-mode):
* lisp/emacs-lisp/easy-mmode.el (define-minor-mode):
* lisp/emacs-lisp/eldoc.el (eldoc-minor-mode-string):
* lisp/emacs-lisp/gv.el (make-obsolete-generalized-variable):
* lisp/emacs-lisp/lisp-mode.el (lisp-imenu-generic-expression):
* lisp/emacs-lisp/loaddefs-gen.el (loaddefs-generate--parse-file):
* lisp/emacs-lisp/warnings.el (warning-type-format):
Remove calls to purecopy.

(cherry picked from commit 8da7086be6d0b0387c3ffbede062c4349045af70)