Issue #1470 - Part 3: Remove now unused update.locale

This requires changes to package-manifest in all applications

python/mozbuild/mozpack/packager/formats.py

@@ -320,5 +320,4 @@ class OmniJarSubFormatter(PiecemealFormatter):
             'modules',
             'goanna.js',
             'hyphenation',
-            'update.locale',
         ] or path[0] in STARTUP_CACHE_PATHS

python/mozbuild/mozpack/test/test_packager_formats.py

@@ -407,7 +407,6 @@ class TestFormatters(unittest.TestCase):
             self.assertTrue(is_resource(base, 'modules/foo.jsm'))
             self.assertTrue(is_resource(base, 'goanna.js'))
             self.assertTrue(is_resource(base, 'hyphenation/foo'))
-            self.assertTrue(is_resource(base, 'update.locale'))
             self.assertTrue(
                 is_resource(base, 'jsloader/resource/gre/modules/foo.jsm'))
             self.assertFalse(is_resource(base, 'foo'))