Input: sparse-keymap - remove sparse_keymap_free()

Now that all users of sparse_keymap_free() are gone we can remove the stub.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/sparse-keymap.c

@@ -223,20 +223,6 @@ int sparse_keymap_setup(struct input_dev *dev,
 }
 EXPORT_SYMBOL(sparse_keymap_setup);
 
-/**
- * sparse_keymap_free - free memory allocated for sparse keymap
- * @dev: Input device using sparse keymap
- *
- * This function used to free memory allocated by sparse keymap
- * in an input device that was set up by sparse_keymap_setup().
- * Since sparse_keymap_setup() now uses a managed allocation for the
- * keymap copy, use of this function is deprecated.
- */
-void sparse_keymap_free(struct input_dev *dev)
-{
-}
-EXPORT_SYMBOL(sparse_keymap_free);
-
 /**
  * sparse_keymap_report_entry - report event corresponding to given key entry
  * @dev: Input device for which event should be reported

include/linux/input/sparse-keymap.h

@@ -51,7 +51,6 @@ struct key_entry *sparse_keymap_entry_from_keycode(struct input_dev *dev,
 int sparse_keymap_setup(struct input_dev *dev,
 			const struct key_entry *keymap,
 			int (*setup)(struct input_dev *, struct key_entry *));
-void sparse_keymap_free(struct input_dev *dev);
 
 void sparse_keymap_report_entry(struct input_dev *dev, const struct key_entry *ke,
 				unsigned int value, bool autorelease);