Drop step_machine column (#1806)

Bug 3 in #1712 

Was changed in f13ffc2c8f

server/store/datastore/migration/017_remove_machine_col.go

@@ -0,0 +1,35 @@
+// Copyright 2023 Woodpecker Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package migration
+
+import (
+	"xorm.io/xorm"
+)
+
+type oldStep017 struct {
+	ID      int64  `xorm:"pk autoincr 'step_id'"`
+	Machine string `xorm:"step_machine"`
+}
+
+var removeMachineCol = task{
+	name: "remove-machine-col",
+	fn: func(sess *xorm.Session) error {
+		// make sure step_machine column exists
+		if err := sess.Sync(new(oldStep017)); err != nil {
+			return err
+		}
+		return dropTableColumns(sess, "steps", "step_machine")
+	},
+}

server/store/datastore/migration/migration.go

@@ -45,6 +45,7 @@ var migrationTasks = []*task{
 	&removeActiveFromUsers,
 	&removeInactiveRepos,
 	&dropFiles,
+	&removeMachineCol,
 }
 
 var allBeans = []interface{}{