Remove util-list, use srfi-1.

src/util-list.scm

@@ -1,61 +0,0 @@
-;;
-;; util-list.scm
-;;
-;; Various utilities so that no external libraries are needed.
-;;
-;; ISC License
-;;
-;; Copyright 2023 Brmlab, z.s.
-;; Dominik Pantůček <dominik.pantucek@trustica.cz>
-;;
-;; Permission to use, copy, modify, and/or distribute this software
-;; for any purpose with or without fee is hereby granted, provided
-;; that the above copyright notice and this permission notice appear
-;; in all copies.
-;; 
-;; THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
-;; WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
-;; WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
-;; AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
-;; CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
-;; OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
-;; NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
-;; CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-;;
-
-(declare (unit util-list))
-
-(module
- util-list
- (
-  filter
-  util-list-tests!
-  )
-
- (import scheme
-	 (chicken base)
-	 (chicken io)
-	 (chicken process)
-	 testing)
-
- ;; Returns a list with elements matching pred? predicate.
- (define (filter pred? lst)
-   (let loop ((lst lst)
-	      (res '()))
-     (if (null? lst)
-	 (reverse res)
-	 (if (pred? (car lst))
-	     (loop (cdr lst)
-		   (cons (car lst) res))
-	     (loop (cdr lst)
-		   res)))))
-
- ;; Performs utils module self-tests.
- (define (util-list-tests!)
-   (run-tests
-    util-list
-    (test-equal? filter (filter odd? '(1 2 3 4)) '(1 3))
-    (test-equal? filter (filter odd? '(2 4)) '())
-    ))
-
- )