Rationalize use of c[ad]+r, expunging cl-c[ad]\{3,4\}r.

Rationalize use of c[ad]+r, expunging cl-c[ad]\{3,4\}r.

Also expunge eudc-c[ad]+r.

* subr.el (internal--compiler-macro-cXXr): "New" function, copied
from cl--compiler-macro-cXXr.
(caar, cadr, cdar, cddr): Change from defsubsts to defuns with
the above compiler-macro.

* net/eudc.el (eudc-cadr, eudc-cdar, eudc-caar, eudc-cdaar): Remove.

* emacs-lisp/cl.el (Top level dolist doing defaliases): Remove
caaar, etc., from list of new alias functions.

* emacs-lisp/cl-lib.el (cl-caaar, etc): Rename to caaar, etc.
(gen-cXXr--rawname, gen-cXXr-all-cl-aliases): New function/macro
which generate obsolete cl- aliases for caaar, etc.  Invoke them.

* desktop.el:
* edmacro.el:
* emacs-lisp/cl-macs.el:
* frameset.el:
* ibuffer.el:
* mail/footnote.el:
* net/dbus.el:
* net/eudc-export.el:
* net/eudc.el:
* net/eudcb-ph.el:
* net/rcirc.el:
* net/secrets.el:
* play/5x5.el:
* play/decipher.el:
* play/hanoi.el:
* progmodes/hideif.el:
* ses.el: Replace cl-caaar, eudc-cadr, etc. with caaar and cadr, etc.