autopilot: remove unimpleneted SpliceIn/Out methods

autopilot/agent_test.go

@@ -139,14 +139,6 @@ func (m *mockChanController) OpenChannel(target *btcec.PublicKey,
 func (m *mockChanController) CloseChannel(chanPoint *wire.OutPoint) error {
 	return nil
 }
-func (m *mockChanController) SpliceIn(chanPoint *wire.OutPoint,
-	amt btcutil.Amount) (*Channel, error) {
-	return nil, nil
-}
-func (m *mockChanController) SpliceOut(chanPoint *wire.OutPoint,
-	amt btcutil.Amount) (*Channel, error) {
-	return nil, nil
-}
 
 var _ ChannelController = (*mockChanController)(nil)
 
@@ -391,14 +383,6 @@ func (m *mockFailingChanController) OpenChannel(target *btcec.PublicKey,
 func (m *mockFailingChanController) CloseChannel(chanPoint *wire.OutPoint) error {
 	return nil
 }
-func (m *mockFailingChanController) SpliceIn(chanPoint *wire.OutPoint,
-	amt btcutil.Amount) (*Channel, error) {
-	return nil, nil
-}
-func (m *mockFailingChanController) SpliceOut(chanPoint *wire.OutPoint,
-	amt btcutil.Amount) (*Channel, error) {
-	return nil, nil
-}
 
 var _ ChannelController = (*mockFailingChanController)(nil)