o not check for segments-count on optimize:

this is also done in Solr and our getSegmentsCount() does not return
up-to-date values

source/net/yacy/cora/federate/solr/connector/SolrServerConnector.java

@@ -91,7 +91,6 @@ public abstract class SolrServerConnector extends AbstractSolrConnector implemen
     @Override
     public void optimize(int maxSegments) {
         if (this.server == null) return;
-        if (getSegmentCount() <= maxSegments) return;
         synchronized (this.server) {
             try {
                 //this.server.optimize(true, true, maxSegments);