security: Remove security_old_inode_init_security()

As the remaining two users reiserfs and ocfs2 switched to
security_inode_init_security(), security_old_inode_init_security() can be
now removed.

Out-of-tree kernel modules should switch to security_inode_init_security()
too.

Signed-off-by: Roberto Sassu <[e-mail]>
Reviewed-by: Casey Schaufler <[e-mail]>
Reviewed-by: Mimi Zohar <[e-mail]>
Signed-off-by: Paul Moore <[e-mail]>

include/linux/security.h

···
 int security_inode_init_security_anon(struct inode *inode,
 				      const struct qstr *name,
 				      const struct inode *context_inode);
-int security_old_inode_init_security(struct inode *inode, struct inode *dir,
-				     const struct qstr *qstr, const char **name,
-				     void **value, size_t *len);
 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
 			 struct dentry *new_dentry);
···
 						    const struct inode *context_inode)
 {
 	return 0;
-}
-
-static inline int security_old_inode_init_security(struct inode *inode,
-						   struct inode *dir,
-						   const struct qstr *qstr,
-						   const char **name,
-						   void **value, size_t *len)
-{
-	return -EOPNOTSUPP;
 }
 
 static inline int security_inode_create(struct inode *dir,

security/security.c

···
 			     context_inode);
 }
 
-int security_old_inode_init_security(struct inode *inode, struct inode *dir,
-				     const struct qstr *qstr, const char **name,
-				     void **value, size_t *len)
-{
-	if (unlikely(IS_PRIVATE(inode)))
-		return -EOPNOTSUPP;
-	return call_int_hook(inode_init_security, -EOPNOTSUPP, inode, dir,
-			     qstr, name, value, len);
-}
-EXPORT_SYMBOL(security_old_inode_init_security);
-
 #ifdef CONFIG_SECURITY_PATH
 /**
  * security_path_mknod() - Check if creating a special file is allowed