Delete commented out code from cperl-mode.el

* lisp/progmodes/cperl-mode.el: Delete some commented out code.

lisp/progmodes/cperl-mode.el

@@ -333,17 +333,7 @@ Affects: `cperl-font-lock', `cperl-electric-lbrace-space',
 (defcustom cperl-vc-rcs-header '("($rcs) = (' $Id\ $ ' =~ /(\\d+(\\.\\d+)+)/);")
   "Special version of `vc-rcs-header' that is used in CPerl mode buffers."
   :type '(repeat string)
-     :group 'cperl)
-
-;; (defcustom cperl-clobber-mode-lists
-;;   (not
-;;    (and
-;;     (boundp 'interpreter-mode-alist)
-;;     (assoc "miniperl" interpreter-mode-alist)
-;;     (assoc "\\.\\([pP][Llm]\\|al\\)$" auto-mode-alist)))
-;;   "Whether to install us into `interpreter-' and `extension' mode lists."
-;;   :type 'boolean
-;;   :group 'cperl)
+  :group 'cperl)
 
 (defcustom cperl-info-on-command-no-prompt nil
   "Not-nil (and non-null) means not to prompt on \\[cperl-info-on-command].
@@ -912,14 +902,6 @@ Unless KEEP, removes the old indentation."
       (delete-horizontal-space))
   (indent-to column minimum))
 
-;; Probably it is too late to set these guys already, but it can help later:
-
-;;(and cperl-clobber-mode-lists
-;;(setq auto-mode-alist
-;;      (append '(("\\.\\([pP][Llm]\\|al\\)$" . perl-mode))  auto-mode-alist ))
-;;(and (boundp 'interpreter-mode-alist)
-;;     (setq interpreter-mode-alist (append interpreter-mode-alist
-;;					  '(("miniperl" . perl-mode))))))
 (eval-when-compile
   (mapc #'require '(imenu easymenu etags timer man info)))