Revert "worker: prevent deadlock by flooding worker.Messages channel"

This reverts commit 7473571159.

The commit has introduced a regression that lead to the pager not being
filled with content, thereby making reading mails impossible.

Signed-off-by: Moritz Poldrack <git@moritz.sh>
Acked-by: Robin Jarry <robin@jarry.cc>

worker/types/worker.go

@@ -64,10 +64,7 @@ func (worker *Worker) PostMessage(msg WorkerMessage,
 	} else {
 		logging.Debugf("PostMessage %T", msg)
 	}
-	// This one needs to be in a separate goroutine to prevent deadlocks
-	go func() {
-		worker.Messages <- msg
-	}()
+	worker.Messages <- msg
 
 	if cb != nil {
 		worker.messageCallbacks[msg.getId()] = cb