GrampsLocale: Remove get_translation()

Only one base translation per locale. To set up a different locale
on any axis (locale, domain, directory, or languages) instantiate a
secondary locale by calling GrampsLocale() with the appropriate
arguments.

svn: r21968

gramps/gui/plug/quick/_quickreports.py

@@ -34,7 +34,7 @@ This module provides the functions to build the quick report context menu's
 from __future__ import print_function
 
 from gramps.gen.const import GRAMPS_LOCALE as glocale
-_ = glocale.get_translation().gettext
+_ = glocale.translation.gettext
 import sys
 if sys.version_info[0] < 3:
     from StringIO import StringIO