Fix Labels Delete (#180)

Fix Delete a Label

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: 6543 <6543@obermui.de>
Reviewed-on: https://gitea.com/gitea/tea/pulls/180
Reviewed-by: John Olheiser <john.olheiser@gmail.com>
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>

cmd/labels.go

@@ -245,7 +245,7 @@ var CmdLabelDelete = cli.Command{
 	Name:        "delete",
 	Usage:       "Delete a label",
 	Description: `Delete a label`,
-	Action:      runLabelCreate,
+	Action:      runLabelDelete,
 	Flags: []cli.Flag{
 		&cli.IntFlag{
 			Name:  "id",