Move HandlerRegistryBenchmark to core/

It blended in with Netty benchmarks, so was missed in our earlier reorganization.

Author: ejona86

core/build.gradle

@@ -29,6 +29,8 @@ dependencies {
  libraries.guava_testlib,
  libraries.opencensus_impl
 
+ jmh project(':grpc-testing')
+
  signature "org.codehaus.mojo.signature:java17:1.0@signature"
  signature "net.sf.androidscents.signature:android-api-level-14:4.0_r4@signature"
 }

benchmarks/src/jmh/java/io/grpc/benchmarks/netty/HandlerRegistryBenchmark.java renamed to core/src/jmh/java/io/grpc/util/HandlerRegistryBenchmark.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package io.grpc.benchmarks.netty;
+package io.grpc.util;
 
 import io.grpc.Metadata;
 import io.grpc.MethodDescriptor;
@@ -23,7 +23,6 @@
 import io.grpc.ServerCallHandler;
 import io.grpc.ServerServiceDefinition;
 import io.grpc.testing.TestMethodDescriptors;
-import io.grpc.util.MutableHandlerRegistry;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Random;