driver core: attribute_container: Remove unused functions

I can't find any use of 'attribute_container_add_class_device_adapter'
or 'attribute_container_trigger' in git history.
Their export decls went in 2006:
commit 1740757e8f94 ("[PATCH] Driver Core: remove unused exports")

and their docs disappeared in 2016:
commit 47cb398dd75a ("Docs: sphinxify device-drivers.tmpl")

Remove them.

Signed-off-by: Dr. David Alan Gilbert <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/base/attribute_container.c

···
  * @fn:   the function to execute for each classdev.
  *
  * This function is for executing a trigger when you need to know both
- * the container and the classdev.  If you only care about the
- * container, then use attribute_container_trigger() instead.
+ * the container and the classdev.
  */
 void
 attribute_container_device_trigger(struct device *dev,
···
 			if (dev == ic->classdev.parent)
 				fn(cont, dev, &ic->classdev);
 		}
-	}
-	mutex_unlock(&attribute_container_mutex);
-}
-
-/**
- * attribute_container_trigger - trigger a function for each matching container
- *
- * @dev:  The generic device to activate the trigger for
- * @fn:	  the function to trigger
- *
- * This routine triggers a function that only needs to know the
- * matching containers (not the classdev) associated with a device.
- * It is more lightweight than attribute_container_device_trigger, so
- * should be used in preference unless the triggering function
- * actually needs to know the classdev.
- */
-void
-attribute_container_trigger(struct device *dev,
-			    int (*fn)(struct attribute_container *,
-				      struct device *))
-{
-	struct attribute_container *cont;
-
-	mutex_lock(&attribute_container_mutex);
-	list_for_each_entry(cont, &attribute_container_list, node) {
-		if (cont->match(cont, dev))
-			fn(cont, dev);
 	}
 	mutex_unlock(&attribute_container_mutex);
 }
···
 	if (error)
 		return error;
 	return attribute_container_add_attrs(classdev);
-}
-
-/**
- * attribute_container_add_class_device_adapter - simple adapter for triggers
- *
- * @cont: the container to register.
- * @dev:  the generic device to activate the trigger for
- * @classdev:	the class device to add
- *
- * This function is identical to attribute_container_add_class_device except
- * that it is designed to be called from the triggers
- */
-int
-attribute_container_add_class_device_adapter(struct attribute_container *cont,
-					     struct device *dev,
-					     struct device *classdev)
-{
-	return attribute_container_add_class_device(classdev);
 }
 
 /**

include/linux/attribute_container.h

···
 					    int (*undo)(struct attribute_container *,
 							struct device *,
 							struct device *));
-void attribute_container_trigger(struct device *dev, 
-				 int (*fn)(struct attribute_container *,
-					   struct device *));
 int attribute_container_add_attrs(struct device *classdev);
 int attribute_container_add_class_device(struct device *classdev);
-int attribute_container_add_class_device_adapter(struct attribute_container *cont,
-						 struct device *dev,
-						 struct device *classdev);
 void attribute_container_remove_attrs(struct device *classdev);
 void attribute_container_class_device_del(struct device *classdev);
 struct attribute_container *attribute_container_classdev_to_container(struct device *);