remove last remainders of ElasticSearch

Author: lonvia

src/main/java/de/komoot/photon/App.java

@@ -285,7 +285,7 @@ private static void startNominatimUpdate(NominatimUpdater nominatimUpdater, Serv
             dbProperties.setImportDate(importDate);
             esServer.saveToDatabase(dbProperties);
         } catch (IOException e) {
-            throw new UsageException("Cannot setup index, elastic search config files not readable");
+            throw new UsageException("Cannot setup index, database config files not readable");
         }
     }
 

src/main/java/de/komoot/photon/config/PhotonDBConfig.java

@@ -26,7 +26,7 @@ public PhotonDBConfig() {
     private String dataDirectory = new File(".").getAbsolutePath();
 
     @Parameter(names = "-transport-addresses", category = GROUP, placeholder = "ADDR,..", description = """
-            Comma-separated list of addresses of external ElasticSearch nodes the client can connect to;
+            Comma-separated list of addresses of external OpenSearch nodes the client can connect to;
             when left empty, then an internal server is started and used
             """)
     private List<String> transportAddresses = new ArrayList<>();

src/main/java/de/komoot/photon/opensearch/OpenSearchStructuredSearchHandler.java

@@ -14,7 +14,7 @@
 import java.io.IOException;
 
 /**
- * Execute a structured forward lookup on an Elasticsearch database.
+ * Execute a structured forward lookup.
  */
 @NullMarked
 public class OpenSearchStructuredSearchHandler implements SearchHandler<StructuredSearchRequest> {