[nongnu] elpa/d-mode a0e95f4 282/346: Remove cl-lib dependency

[ELPA Syncer]

branch: elpa/d-mode
commit a0e95f47c37b91b04e6b3ab4a2b20d1da50d17fd
Author: Vladimir Panteleev <git@thecybershadow.net>
Commit: Vladimir Panteleev <git@thecybershadow.net>

    Remove cl-lib dependency
    
    Unnecessary as cc-mode already wraps the needed function.
---
 d-mode.el | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/d-mode.el b/d-mode.el
index 115d090..bc59f6a 100644
--- a/d-mode.el
+++ b/d-mode.el
@@ -7,7 +7,7 @@
 ;; Maintainer:  Russel Winder <russel@winder.org.uk>
 ;;              Vladimir Panteleev <vladimir@thecybershadow.net>
 ;; Created:  March 2007
-;; Version:  201911082245
+;; Version:  201911101349
 ;; Keywords:  D programming language emacs cc-mode
 ;; Package-Requires: ((emacs "25.1"))
 
@@ -92,9 +92,6 @@
   (when (and (= emacs-major-version 24) (>= emacs-minor-version 4))
     (require 'cl)))
 
-;; The set-difference function is used from the Common Lisp extensions.
-(require 'cl-lib)
-
 ;; Used to specify regular expressions in a sane way.
 (require 'rx)
 
@@ -198,7 +195,7 @@ operators."
 
 (c-lang-defconst c-block-prefix-disallowed-chars
   ;; Allow ':' for inherit list starters.
-  d (cl-set-difference (c-lang-const c-block-prefix-disallowed-chars)
+  d (c--set-difference (c-lang-const c-block-prefix-disallowed-chars)
                       '(?:)))
 
 (c-lang-defconst c-post-protection-token