choose-mirror: fix utf-8 on udeb via upgrade release

helpers/DATA/choose-mirror/rev_choose-mirror-bin.templates-in.patch

@@ -1,22 +0,0 @@
-diff -ru choose-mirror-2.78ubuntu7+10.0trisquel3/debian/choose-mirror-bin.templates-in choose-mirror-2.111/debian/choose-mirror-bin.templates-in
---- choose-mirror-2.78ubuntu7+10.0trisquel3/debian/choose-mirror-bin.templates-in	2021-02-26 15:22:56.000000000 -0600
-+++ choose-mirror-2.111/debian/choose-mirror-bin.templates-in	2021-02-08 06:52:03.000000000 -0600
-@@ -12,10 +12,14 @@
- Type: select
- Choices-C: ${CHOICES-C}
- Choices: ${CHOICES}
--Default: _CODENAME_
--Description: Trisquel version to install:
-- In Trisquel, this question is never asked, and is only for preseeding.
-- Caveat emptor.
-+# :sl2:
-+_Description: Debian version to install:
-+ Debian comes in several flavors. Stable is well-tested and rarely changes.
-+ Unstable is untested and frequently changing. Testing is a middle ground,
-+ that receives many of the new versions from unstable if they are not too
-+ buggy.
-+ .
-+ Only flavors available on the selected mirror are listed.
- 
- Template: mirror/codename
- Type: string