Revert "Fix translations domains to point to new toolkit"

This reverts commit abe0de3ef8.

src/sugar3/activity/activity.py

@@ -83,7 +83,7 @@ from sugar3.graphics.icon import Icon
 from sugar3.datastore import datastore
 from gi.repository import SugarExt
 
-from gettext import gettext as _
+_ = lambda msg: gettext.dgettext('sugar-toolkit', msg)
 
 SCOPE_PRIVATE = 'private'
 SCOPE_INVITE_ONLY = 'invite'  # shouldn't be shown in UI, it's implicit

src/sugar3/activity/widgets.py

@@ -32,7 +32,8 @@ from sugar3.bundle.activitybundle import ActivityBundle
 from sugar3.graphics import style
 from sugar3.graphics.palettemenu import PaletteMenuBox
 
-from gettext import gettext as _
+
+_ = lambda msg: gettext.dgettext('sugar-toolkit', msg)
 
 
 def _create_activity_icon(metadata):