[elpa] externals/denote aeb8905128 1/6: Remove some unused variables and functions

[ELPA Syncer]

branch: externals/denote
commit aeb890512812d8c9481b876e227af96554077b4c
Author: Jean-Philippe Gagné Guay <jeanphilippe150@gmail.com>
Commit: Jean-Philippe Gagné Guay <jeanphilippe150@gmail.com>

    Remove some unused variables and functions
    
    - Remove denote--retrieve-id-front-matter-key-regexp,
    denote--retrieve-date-front-matter-regexp and
    denote--retrieve-value-date.
---
 denote.el | 16 ----------------
 1 file changed, 16 deletions(-)

diff --git a/denote.el b/denote.el
index d74b7732e3..9633af30ca 100644
--- a/denote.el
+++ b/denote.el
@@ -557,18 +557,10 @@ output is sorted with `string-lessp'."
 
 ;;;; Front matter or content retrieval functions
 
-(defconst denote--retrieve-id-front-matter-key-regexp
-  "^.?.?\\b\\(?:identifier\\)\\s-*[:=]"
-  "Regular expression for identifier key.")
-
 (defconst denote--retrieve-title-front-matter-key-regexp
   "^\\(?:#\\+\\)?\\(?:title\\)\\s-*[:=]"
   "Regular expression for title key.")
 
-(defconst denote--retrieve-date-front-matter-key-regexp
-  "^\\(?:#\\+\\)?\\(?:date\\)\\s-*[:=]"
-  "Regular expression for date key.")
-
 (defconst denote--retrieve-keywords-front-matter-key-regexp
   "^\\(?:#\\+\\)?\\(?:tags\\|filetags\\)\\s-*[:=]"
   "Regular expression for keywords key.")
@@ -610,14 +602,6 @@ If optional KEY is non-nil, return the key instead."
    denote--retrieve-title-front-matter-key-regexp
    key))
 
-(defun denote--retrieve-value-date (file &optional key)
-  "Return date value from FILE.
-If optional KEY is non-nil, return the key instead."
-  (denote--retrieve-search
-   file
-   denote--retrieve-date-front-matter-key-regexp
-   key))
-
 (defun denote--retrieve-value-keywords (file &optional key)
   "Return keywords value from FILE.
 If optional KEY is non-nil, return the key instead."