tomoyo: remove "undelete domain" command.

Since TOMOYO's policy management tools does not use the "undelete domain"
command, we decided to remove that command.

Signed-off-by: Kentaro Takeda <takedakn@nttdata.co.jp>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Toshiharu Harada <haradats@nttdata.co.jp>
Signed-off-by: James Morris <jmorris@namei.org>
diff --git a/security/tomoyo/common.c b/security/tomoyo/common.c
index 92cea65..a0affd9 100644
--- a/security/tomoyo/common.c
+++ b/security/tomoyo/common.c
@@ -1252,15 +1252,12 @@
 	struct tomoyo_domain_info *domain = head->write_var1;
 	bool is_delete = false;
 	bool is_select = false;
-	bool is_undelete = false;
 	unsigned int profile;
 
 	if (tomoyo_str_starts(&data, TOMOYO_KEYWORD_DELETE))
 		is_delete = true;
 	else if (tomoyo_str_starts(&data, TOMOYO_KEYWORD_SELECT))
 		is_select = true;
-	else if (tomoyo_str_starts(&data, TOMOYO_KEYWORD_UNDELETE))
-		is_undelete = true;
 	if (is_select && tomoyo_is_select_one(head, data))
 		return 0;
 	/* Don't allow updating policies by non manager programs. */
@@ -1274,9 +1271,7 @@
 			down_read(&tomoyo_domain_list_lock);
 			domain = tomoyo_find_domain(data);
 			up_read(&tomoyo_domain_list_lock);
-		} else if (is_undelete)
-			domain = tomoyo_undelete_domain(data);
-		else
+		} else
 			domain = tomoyo_find_or_assign_new_domain(data, 0);
 		head->write_var1 = domain;
 		return 0;