debugfs: remove extra debugfs_create_file_unsafe() declaration

debugfs_create_file_unsafe() is declared twice in exactly the same
manner each: once in fs/debugfs/internal.h and once in
include/linux/debugfs.h

All files that include the former also include the latter and thus,
the declaration in fs/debugfs/internal.h is superfluous.

Remove it.
Signed-off-by: Nicolai Stange <nicstange@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

fs/debugfs/internal.h

@@ -19,8 +19,4 @@ extern const struct file_operations debugfs_noop_file_operations;
 extern const struct file_operations debugfs_open_proxy_file_operations;
 extern const struct file_operations debugfs_full_proxy_file_operations;
 
-struct dentry *debugfs_create_file_unsafe(const char *name, umode_t mode,
-					struct dentry *parent, void *data,
-					const struct file_operations *fops);
-
 #endif /* _DEBUGFS_INTERNAL_H_ */