context/core/netty: Add @CheckReturnValue to Context

By adding inner class annotations without introducing external dependencies.

1 files changed, 0 insertions, 2 deletions

diff --git a/netty/src/test/java/io/grpc/netty/NettyClientTransportTest.java b/netty/src/test/java/io/grpc/netty/NettyClientTransportTest.java
index a771cad9a..83687e33f 100644
--- a/netty/src/test/java/io/grpc/netty/NettyClientTransportTest.java
+++ b/netty/src/test/java/io/grpc/netty/NettyClientTransportTest.java
@@ -39,7 +39,6 @@ import com.google.common.io.ByteStreams;
 import com.google.common.util.concurrent.SettableFuture;
 import io.grpc.Attributes;
 import io.grpc.CallOptions;
-import io.grpc.Context;
 import io.grpc.Grpc;
 import io.grpc.Metadata;
 import io.grpc.MethodDescriptor;
@@ -127,7 +126,6 @@ public class NettyClientTransportTest {
 
   @After
   public void teardown() throws Exception {
-    Context.ROOT.attach();
     for (NettyClientTransport transport : transports) {
       transport.shutdown(Status.UNAVAILABLE);
     }