Function: org-assoc-delete-all
org-assoc-delete-all is a for assoc-delete-all, defined
in subr.el.gz.
Signature
(org-assoc-delete-all KEY ALIST &optional TEST)
Documentation
Delete from ALIST all elements whose car is KEY.
Compare keys with TEST. Defaults to equal.
Return the modified alist.
Elements of ALIST that are not conses are ignored.