golangci-lint: minimal changes to make make lint pass again

internal/rpc/dataconn/dataconn_debug.go

@@ -14,7 +14,7 @@ func init() {
 	}
 }
 
-//nolint:deadcode,unused
+//nolint:unused
 func debug(format string, args ...interface{}) {
 	if debugEnabled {
 		fmt.Fprintf(os.Stderr, "rpc/dataconn: %s\n", fmt.Sprintf(format, args...))

internal/rpc/dataconn/heartbeatconn/heartbeatconn_debug.go

@@ -13,7 +13,7 @@ func init() {
 	}
 }
 
-//nolint:deadcode,unused
+//nolint:unused
 func debug(format string, args ...interface{}) {
 	if debugEnabled {
 		fmt.Fprintf(os.Stderr, "rpc/dataconn/heartbeatconn: %s\n", fmt.Sprintf(format, args...))

internal/rpc/dataconn/stream/stream.go

@@ -29,7 +29,7 @@ func WithLogger(ctx context.Context, log Logger) context.Context {
 	return context.WithValue(ctx, contextKeyLogger, log)
 }
 
-//nolint:deadcode,unused
+//nolint:unused
 func getLog(ctx context.Context) Logger {
 	log, ok := ctx.Value(contextKeyLogger).(Logger)
 	if !ok {

internal/rpc/dataconn/stream/stream_debug.go

@@ -13,7 +13,7 @@ func init() {
 	}
 }
 
-//nolint:deadcode,unused
+//nolint:unused
 func debug(format string, args ...interface{}) {
 	if debugEnabled {
 		fmt.Fprintf(os.Stderr, "rpc/dataconn/stream: %s\n", fmt.Sprintf(format, args...))