Fix removing immutable settings for lists

Settings can have multiple values, although this is not often used and
the UI has places where this is not properly honored. Fix the case
where we look for and prune uninitialized/immutable settings and
be sure to iterate over all the values to avoid a crash.

Fixes #11549

chirp/wxui/settingsedit.py

@@ -164,12 +164,13 @@ def _remove_dead_settings(self, root):
             if isinstance(e, settings.RadioSetting):
                 # Immutable and uninitialized settings don't get sent to the
                 # radio
-                if not e.value.get_mutable():
-                    LOG.debug('Skipping immutable %s', e.get_name())
-                    del root[e]
-                elif not e.value.initialized:
-                    LOG.debug('Skipping uninitialized %s', e.get_name())
-                    del root[e]
+                for value in e:
+                    if not value.get_mutable():
+                        LOG.debug('Skipping immutable %s', e.get_name())
+                        del root[e]
+                    elif not value.initialized:
+                        LOG.debug('Skipping uninitialized %s', e.get_name())
+                        del root[e]
             elif isinstance(e, settings.RadioSettingGroup):
                 self._remove_dead_settings(e)