sweepbatcher: add mode with presigned transactions

loopout.go

@@ -1269,7 +1269,7 @@ func (s *loopOutSwap) waitForHtlcSpendConfirmedV2(globalCtx context.Context,
 			}
 
 			// Send the sweep to the sweeper.
-			err := s.batcher.AddSweep(&sweepReq)
+			err := s.batcher.AddSweep(ctx, &sweepReq)
 			if err != nil {
 				return nil, err
 			}

sweepbatcher/log.go

@@ -50,8 +50,3 @@ func infof(format string, params ...interface{}) {
 func warnf(format string, params ...interface{}) {
 	log().Warnf(format, params...)
 }
-
-// errorf logs a message with level ERROR.
-func errorf(format string, params ...interface{}) {
-	log().Errorf(format, params...)
-}