Slight tweak

Author: rozza

driver-core/src/main/com/mongodb/internal/connection/DefaultServerMonitor.java

@@ -196,8 +196,7 @@ public void close() {
 
         @Override
         public void run() {
-            ServerDescription unknownConnectingServerDescription = unknownConnectingServerDescription(serverId, null);
-            ServerDescription currentServerDescription = unknownConnectingServerDescription;
+            ServerDescription currentServerDescription = unknownConnectingServerDescription(serverId, null);
             try {
                 while (!isClosed) {
                     ServerDescription previousServerDescription = currentServerDescription;
@@ -217,7 +216,7 @@ public void run() {
                         continue;
                     }
 
-                    // For POLL mode, if we just established initial connection, do an immediate heartbeat
+                    // When not streaming, if we just established initial connection, do an immediate heartbeat
                     if (!shouldStreamResponses && connection != null && !connection.isClosed()
                             && currentServerDescription.equals(connection.getInitialServerDescription())) {
                         continue;