Remove incorrect API of Dubbo

Author: steverao

instrumentation/apache-dubbo-2.7/library-autoconfigure/src/main/java/io/opentelemetry/instrumentation/apachedubbo/v2_7/DubboTelemetry.java

@@ -35,16 +35,6 @@ public static DubboTelemetryBuilder builder(OpenTelemetry openTelemetry) {
     this.clientInstrumenter = clientInstrumenter;
   }
 
-  /**
-   * Returns a new Dubbo {@link Filter} that traces Dubbo RPC invocations.
-   *
-   * @deprecated Use {@link #newClientFilter} and {@link #newServerFilter} instead.
-   */
-  @Deprecated
-  public Filter newFilter() {
-    return TracingFilter.newFilter(serverInstrumenter, clientInstrumenter);
-  }
-
   /** Returns a new Dubbo client {@link Filter} that traces Dubbo RPC invocations. */
   public Filter newClientFilter() {
     return TracingFilter.newClientFilter(clientInstrumenter);

instrumentation/apache-dubbo-2.7/library-autoconfigure/src/main/java/io/opentelemetry/instrumentation/apachedubbo/v2_7/TracingFilter.java

@@ -49,23 +49,6 @@ public boolean isClientSide(RpcContext rpcContext) {
         });
   }
 
-  static TracingFilter newFilter(
-      Instrumenter<DubboRequest, Result> serverInstrumenter,
-      Instrumenter<DubboRequest, Result> clientInstrumenter) {
-    return new TracingFilter(
-        new InstrumenterSupplier() {
-          @Override
-          public Instrumenter<DubboRequest, Result> get(RpcContext rpcContext) {
-            return rpcContext.isConsumerSide() ? clientInstrumenter : serverInstrumenter;
-          }
-
-          @Override
-          public boolean isClientSide(RpcContext rpcContext) {
-            return rpcContext.isConsumerSide();
-          }
-        });
-  }
-
   @Override
   @SuppressWarnings("deprecation") // deprecation for RpcContext.getContext()
   public Result invoke(Invoker<?> invoker, Invocation invocation) {