cleanup: more simplifications (#2574)

balancer/grpclb/grpclb_test.go

@@ -173,10 +173,7 @@ func (s *rpcStats) equal(o *rpcStats) bool {
 	defer s.mu.Unlock()
 	o.mu.Lock()
 	defer o.mu.Unlock()
-	if !mapsEqual(s.numCallsDropped, o.numCallsDropped) {
-		return false
-	}
-	return true
+	return mapsEqual(s.numCallsDropped, o.numCallsDropped)
 }
 
 type remoteBalancer struct {

examples/features/authentication/oauth/server/main.go

@@ -96,10 +96,7 @@ func valid(authorization []string) bool {
 	// Perform the token validation here. For the sake of this example, the code
 	// here forgoes any of the usual OAuth2 token validation and instead checks
 	// for a token matching an arbitrary string.
-	if token != "some-secret-token" {
-		return false
-	}
-	return true
+	return token == "some-secret-token"
 }
 
 // ensureValidToken ensures a valid token exists within a request's metadata. If

examples/features/interceptor/server/main.go

@@ -89,10 +89,7 @@ func valid(authorization []string) bool {
 	// Perform the token validation here. For the sake of this example, the code
 	// here forgoes any of the usual OAuth2 token validation and instead checks
 	// for a token matching an arbitrary string.
-	if token != "some-secret-token" {
-		return false
-	}
-	return true
+	return token == "some-secret-token"
 }
 
 func unaryInterceptor(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {

examples/features/load_balancing/client/main.go

@@ -111,7 +111,7 @@ type exampleResolver struct {
 
 func (r *exampleResolver) start() {
 	addrStrs := r.addrsStore[r.target.Endpoint]
-	addrs := make([]resolver.Address, len(addrStrs), len(addrStrs))
+	addrs := make([]resolver.Address, len(addrStrs))
 	for i, s := range addrStrs {
 		addrs[i] = resolver.Address{Addr: s}
 	}

examples/features/name_resolving/client/main.go

@@ -119,7 +119,7 @@ type exampleResolver struct {
 
 func (r *exampleResolver) start() {
 	addrStrs := r.addrsStore[r.target.Endpoint]
-	addrs := make([]resolver.Address, len(addrStrs), len(addrStrs))
+	addrs := make([]resolver.Address, len(addrStrs))
 	for i, s := range addrStrs {
 		addrs[i] = resolver.Address{Addr: s}
 	}

internal/binarylog/method_logger.go

@@ -377,10 +377,7 @@ func metadataKeyOmit(key string) bool {
 	case "grpc-trace-bin": // grpc-trace-bin is special because it's visiable to users.
 		return false
 	}
-	if strings.HasPrefix(key, "grpc-") {
-		return true
-	}
-	return false
+	return strings.HasPrefix(key, "grpc-")
 }
 
 func mdToMetadataProto(md metadata.MD) *pb.Metadata {

test/channelz_test.go

@@ -834,7 +834,7 @@ func doServerSideInitiatedFailedStreamWithClientBreakFlowControl(tc testpb.TestS
 	}
 	// sleep here to make sure header frame being sent before the data frame we write directly below.
 	time.Sleep(10 * time.Millisecond)
-	payload := make([]byte, 65537, 65537)
+	payload := make([]byte, 65537)
 	dw.getRawConnWrapper().writeRawFrame(http2.FrameData, 0, tc.(*testServiceClientWrapper).getCurrentStreamID(), payload)
 	if _, err := stream.Recv(); err == nil || status.Code(err) != codes.ResourceExhausted {
 		t.Fatalf("%v.Recv() = %v, want error code: %v", stream, err, codes.ResourceExhausted)