Split migrations folder (#21549)

There are too many files in `models/migrations` folder so that I split
them into sub folders.

1 files changed, 0 insertions, 38 deletions

diff --git a/models/migrations/v159.go b/models/migrations/v159.go
deleted file mode 100644
index 68043b9412..0000000000
--- a/models/migrations/v159.go
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright 2020 The Gitea Authors. All rights reserved.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-
-package migrations
-
-import (
-	"code.gitea.io/gitea/modules/timeutil"
-
-	"xorm.io/xorm"
-)
-
-func updateReactionConstraint(x *xorm.Engine) error {
-	// Reaction represents a reactions on issues and comments.
-	type Reaction struct {
-		ID               int64              `xorm:"pk autoincr"`
-		Type             string             `xorm:"INDEX UNIQUE(s) NOT NULL"`
-		IssueID          int64              `xorm:"INDEX UNIQUE(s) NOT NULL"`
-		CommentID        int64              `xorm:"INDEX UNIQUE(s)"`
-		UserID           int64              `xorm:"INDEX UNIQUE(s) NOT NULL"`
-		OriginalAuthorID int64              `xorm:"INDEX UNIQUE(s) NOT NULL DEFAULT(0)"`
-		OriginalAuthor   string             `xorm:"INDEX UNIQUE(s)"`
-		CreatedUnix      timeutil.TimeStamp `xorm:"INDEX created"`
-	}
-
-	sess := x.NewSession()
-	defer sess.Close()
-
-	if err := sess.Begin(); err != nil {
-		return err
-	}
-
-	if err := recreateTable(sess, &Reaction{}); err != nil {
-		return err
-	}
-
-	return sess.Commit()
-}