all: Remove miscellaneous vestigial code (#7495)

lib/model/blockpullreorderer_test.go

@@ -7,10 +7,11 @@
 package model
 
 import (
-	"github.com/syncthing/syncthing/lib/protocol"
 	"reflect"
 	"sort"
 	"testing"
+
+	"github.com/syncthing/syncthing/lib/protocol"
 )
 
 var (
@@ -46,9 +47,6 @@ func Test_chunk(t *testing.T) {
 }
 
 func Test_inOrderBlockPullReorderer_Reorder(t *testing.T) {
-	type args struct {
-		blocks []protocol.BlockInfo
-	}
 	tests := []struct {
 		name   string
 		blocks []protocol.BlockInfo

lib/model/indexsender.go

@@ -25,7 +25,6 @@ type indexSender struct {
 	conn                     protocol.Connection
 	folder                   string
 	folderIsReceiveEncrypted bool
-	dev                      string
 	fset                     *db.FileSet
 	prevSequence             int64
 	evLogger                 events.Logger

lib/model/model.go

@@ -184,7 +184,6 @@ var (
 	errNetworkNotAllowed = errors.New("network not allowed")
 	errNoVersioner       = errors.New("folder has no versioner")
 	// errors about why a connection is closed
-	errIgnoredFolderRemoved            = errors.New("folder no longer ignored")
 	errReplacingConnection             = errors.New("replacing connection")
 	errStopped                         = errors.New("Syncthing is being stopped")
 	errEncryptionInvConfigLocal        = errors.New("can't encrypt data for a device when the folder type is receiveEncrypted")
@@ -1701,15 +1700,6 @@ func (m *model) handleAutoAccepts(deviceID protocol.DeviceID, folder protocol.Fo
 	}
 }
 
-func (m *model) newFolderConfiguration(id, label string, fsType fs.FilesystemType, path string) config.FolderConfiguration {
-	fcfg := m.cfg.DefaultFolder()
-	fcfg.ID = id
-	fcfg.Label = label
-	fcfg.FilesystemType = fsType
-	fcfg.Path = path
-	return fcfg
-}
-
 func (m *model) introduceDevice(device protocol.Device, introducerCfg config.DeviceConfiguration) config.DeviceConfiguration {
 	addresses := []string{"dynamic"}
 	for _, addr := range device.Addresses {