Enable initiating writes for bdp pings

src/core/ext/transport/chttp2/transport/chttp2_transport.cc

@@ -2569,9 +2569,7 @@ void schedule_bdp_ping_locked(grpc_chttp2_transport* t) {
                         grpc_schedule_on_exec_ctx),
       GRPC_CLOSURE_INIT(&t->finish_bdp_ping_locked, finish_bdp_ping, t,
                         grpc_schedule_on_exec_ctx));
-  // TODO(yashykt): Enabling this causes internal b/168345569. Re-enable once
+  grpc_chttp2_initiate_write(t, GRPC_CHTTP2_INITIATE_WRITE_BDP_PING);
-  // fixed.
-  // grpc_chttp2_initiate_write(t, GRPC_CHTTP2_INITIATE_WRITE_BDP_PING);
 }
 
 static void start_bdp_ping(void* tp, grpc_error* error) {