Revert "new-calendar-page: add support for webcal:// links"

This reverts commit 8520e1819c

src/gui/calendar-management/gcal-new-calendar-page.c

@@ -356,16 +356,6 @@ validate_url_cb (gpointer data)
 
   if (uri != NULL && SOUP_URI_IS_VALID (uri))
     {
-      /* "Support" webcal:// links by converting them to https://. This works
-       * because WebDAV is an extension of HTTP, so we can treat it as normal
-       * HTTP.
-       *
-       * Note we don't allow hidden use of http://, since we want to protect the
-       * user from accidentally leaking calendars in the clear. Only https://.
-       */
-      if (strcmp (uri->scheme, "webcal") == 0)
-        soup_uri_set_scheme (uri, SOUP_URI_SCHEME_HTTPS);
-
       discover_sources (self);
     }
   else