cl-remove
cl-remove is an autoloaded compiled Lisp function in `cl-seq.el
'.
(cl-remove ITEM SEQ [KEYWORD VALUE]...)
Remove all occurrences of ITEM in SEQ.
This is a non-destructive function; it makes a copy of SEQ if necessary
to avoid corrupting the original SEQ.
Keywords supported: :test :test-not :key :count :start :end :from-end