[gimp] po-*: move the Python goat exercise to the gimp30-std-plug-ins domain.

[Jehan <jehanp src gnome org>]

commit 59292c1432905e5735d5aadf7f4750418755343a
Author: Jehan <jehan girinstud io>
Date:   Sun Oct 18 02:20:01 2020 +0200

    po-*: move the Python goat exercise to the gimp30-std-plug-ins domain.
    
    Since commit ecbc38f9e9, the Python goat exercise was tracked by the
    po-python/ Gettext files. This was an error as all its strings are
    common to all other goat exercise plug-ins, so it makes no sense to
    separate them (it only duplicates the work).
    
    Actually separating the translation domains by plug-in language was a
    bad idea from the start. Why do we care that a translatable string is
    written in this or that language? All our plug-ins should just share a
    common text domain. This way, we avoid useless duplication of common
    strings.

 po-plug-ins/POTFILES.in | 1 +
 po-python/POTFILES.in   | 2 --
 2 files changed, 1 insertion(+), 2 deletions(-)
---
diff --git a/po-plug-ins/POTFILES.in b/po-plug-ins/POTFILES.in
index 460dc96cf5..76cbdb6f3c 100644
--- a/po-plug-ins/POTFILES.in
+++ b/po-plug-ins/POTFILES.in
@@ -4,6 +4,7 @@
 [encoding: UTF-8]
 
 extensions/goat-exercises/goat-exercise-c.c
+extensions/goat-exercises/goat-exercise-py3.py
 extensions/goat-exercises/goat-exercise-vala.vala
 extensions/goat-exercises/org.gimp.extension.goat-exercises.metainfo.xml.in.in
 
diff --git a/po-python/POTFILES.in b/po-python/POTFILES.in
index 7e99b0a635..687b66f00e 100644
--- a/po-python/POTFILES.in
+++ b/po-python/POTFILES.in
@@ -3,8 +3,6 @@
 
 [encoding: UTF-8]
 
-extensions/goat-exercises/goat-exercise-py3.py
-
 plug-ins/python/benchmark-foreground-extract.py
 plug-ins/python/colorxhtml.py
 plug-ins/python/foggify.py