channel: remove unused functions

newChannel function was re-implemented, some functions
are no more needed.

Signed-off-by: Julio Montes <[email protected]>

channel.go

@@ -227,18 +227,6 @@ func isAFVSockSupported() (bool, error) {
 	return true, nil
 }
 
-func vSockPathExist() (bool, error) {
-	if _, err := os.Stat(vSockDevPath); err != nil {
-		if os.IsNotExist(err) {
-			return false, nil
-		}
-
-		return false, err
-	}
-
-	return true, nil
-}
-
 func findVirtualSerialPath(serialName string) (string, error) {
 	dir, err := os.Open(virtIOPath)
 	if err != nil {
@@ -270,17 +258,3 @@ func findVirtualSerialPath(serialName string) (string, error) {
 
 	return "", grpcStatus.Errorf(codes.NotFound, "Could not find virtio port %s", serialName)
 }
-
-func openSerialChannel() (*os.File, error) {
-	serialPath, err := findVirtualSerialPath(serialChannelName)
-	if err != nil {
-		return nil, err
-	}
-
-	file, err := os.OpenFile(serialPath, os.O_RDWR, os.ModeDevice)
-	if err != nil {
-		return nil, err
-	}
-
-	return file, nil
-}

channel_test.go

@@ -16,38 +16,6 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
-func TestVSockPathExistTrue(t *testing.T) {
-	tmpFile, err := ioutil.TempFile("", "test")
-	assert.Nil(t, err, "%v", err)
-	fileName := tmpFile.Name()
-	defer tmpFile.Close()
-	defer os.Remove(fileName)
-
-	vSockDevPath = fileName
-
-	result, err := vSockPathExist()
-	assert.Nil(t, err, "%v", err)
-
-	assert.True(t, result, "VSOCK should be found")
-}
-
-func TestVSockPathExistFalse(t *testing.T) {
-	tmpFile, err := ioutil.TempFile("", "test")
-	assert.Nil(t, err, "%v", err)
-
-	fileName := tmpFile.Name()
-	tmpFile.Close()
-	err = os.Remove(fileName)
-	assert.Nil(t, err, "%v", err)
-
-	vSockDevPath = fileName
-
-	result, err := vSockPathExist()
-	assert.Nil(t, err, "%v", err)
-
-	assert.False(t, result, "VSOCK should not be found")
-}
-
 func TestSetupVSockChannel(t *testing.T) {
 	c := &vSockChannel{}