Revert "Only save config if value changed"

This reverts commit 47e062aa7e.

lib/simple_config.py

@@ -117,8 +117,6 @@ class SimpleConfig(PrintError):
             return
 
         with self.lock:
-            if key in self.user_config and self.user_config[key] == value:
-                return
             self.user_config[key] = value
             if save:
                 self.save_user_config()