py3: remove unused storage_items()

[lasers]

Codex found inconsistency bug. We should use append, not add with items = [].

This should raise an exception, but it didn't.... Why? It's because this code is not being used anywhere... so just remove it. Also, Idk why modules would want access to other module storage. I mean, I could see some benefits in doing that, but if it's not needed, go ahead and remove it instead of fixing it.

Consistency fix for dead code.

diff --git a/py3status/py3.py b/py3status/py3.py
--- a/py3status/py3.py
+++ b/py3status/py3.py
@@ -1130,13 +1130,13 @@ class Py3:
         - '_mtime': storage last modification timestamp
         """
         if not self._module:
-            return {}.items()
+            return []
         self._storage_init()
         items = []
         module_name = self._module.module_full_name
         for key in self._storage.storage_keys(module_name):
             value = self._storage.storage_get(module_name, key)
-            items.add((key, value))
+            items.append((key, value))
         return items
 
     def play_sound(self, sound_file):
     ```

[ultrabug]

will need a rebase plz