Remove all extern C
diff --git a/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.cc b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.cc
index ad9a2bb..98f85ae 100644
--- a/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.cc
+++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.cc
@@ -2001,7 +2001,7 @@
   return true;
 }
 
-extern "C" void grpc_lb_policy_grpclb_init() {
+void grpc_lb_policy_grpclb_init() {
   grpc_register_lb_policy(grpc_glb_lb_factory_create());
   grpc_register_tracer(&grpc_lb_glb_trace);
 #ifndef NDEBUG
@@ -2013,4 +2013,4 @@
                                    (void*)&grpc_client_load_reporting_filter);
 }
 
-extern "C" void grpc_lb_policy_grpclb_shutdown() {}
+void grpc_lb_policy_grpclb_shutdown() {}