improve

Author: yp05327

options/locale/locale_en-US.ini

@@ -589,6 +589,8 @@ org_still_own_packages = "This organization still owns one or more packages, del
 
 target_branch_not_exist = Target branch does not exist.
 
+cannot_delete_self = You cannot delete yourself when you are an admin. Please remove your admin privileges first.
+
 [user]
 change_avatar = Change your avatar…
 joined_on = Joined on %s

routers/web/user/setting/account.go

@@ -248,7 +248,7 @@ func DeleteAccount(ctx *context.Context) {
 
 	// admin should not delete themself
 	if ctx.Doer.IsAdmin {
-		ctx.Flash.Error(ctx.Tr("admin.users.cannot_delete_self"))
+		ctx.Flash.Error(ctx.Tr("form.cannot_delete_self"))
 		ctx.Redirect(setting.AppSubURL + "/user/settings/account")
 		return
 	}