Remove Local SSL context

pinot-query-runtime/src/main/java/org/apache/pinot/query/service/dispatch/DispatchClient.java

@@ -45,11 +45,6 @@
  */
 class DispatchClient {
   private static final StreamObserver<Worker.CancelResponse> NO_OP_CANCEL_STREAM_OBSERVER = new CancelObserver();
-  private static final Logger LOGGER = LoggerFactory.getLogger(DispatchClient.class);
-  // the key is the hashCode of the TlsConfig, the value is the SslContext
-  // We don't use TlsConfig as the map key because the TlsConfig is mutable, which means the hashCode can change. If the
-  // hashCode changes and the map is resized, the SslContext of the old hashCode will be lost.
-  private static final Map<Integer, SslContext> CLIENT_SSL_CONTEXTS_CACHE = new ConcurrentHashMap<>();
 
   private final ManagedChannel _channel;
   private final PinotQueryWorkerGrpc.PinotQueryWorkerStub _dispatchStub;