format-time-string subsumes time-zone-format

* lisp/calendar/time-date.el (time-zone-format):
* test/lisp/calendar/time-date-tests.el (test-time-zone-format):
Remove.
* lisp/gnus/nnrss.el (nnrss-normalize-date):
Use format-time-string instead of time-zone-format.

1 files changed, 0 insertions, 6 deletions

diff --git a/test/lisp/calendar/time-date-tests.el b/test/lisp/calendar/time-date-tests.el
index 51250ce5e7a..b46a247cd30 100644
--- a/test/lisp/calendar/time-date-tests.el
+++ b/test/lisp/calendar/time-date-tests.el
@@ -104,12 +104,6 @@
     (should (equal (decoded-time-add time (mdec :zone -7200))
                    '(12 15 14 8 7 2019 1 t 7200)))))
 
-(ert-deftest test-time-zone-format ()
-  (should (equal (time-zone-format 3600)
-                 "+01:00"))
-  (should (equal (time-zone-format -7200)
-                 "-02:00")))
-
 (require 'ert)
 
 ;;; time-date-tests.el ends here