Resolve comments

src/core/lib/surface/completion_queue.c

@@ -554,7 +554,6 @@ static bool cq_begin_op_for_next(grpc_completion_queue *cq, void *tag) {
   while (true) {
     gpr_atm count = gpr_atm_no_barrier_load(&cqd->pending_events);
     if (count == 0) {
-      cq_check_tag(cq, tag, true); /* Used in debug builds only */
       return false;
     } else if (gpr_atm_no_barrier_cas(&cqd->pending_events, count, count + 1)) {
       break;

src/cpp/server/server_cc.cc

@@ -151,10 +151,11 @@ class Server::SyncRequest final : public CompletionQueueTag {
     GPR_ASSERT(cq_ && !in_flight_);
     in_flight_ = true;
     if (tag_) {
-      if (grpc_server_request_registered_call(
+      if (GRPC_CALL_OK !=
+          grpc_server_request_registered_call(
               server, tag_, &call_, &deadline_, &request_metadata_,
               has_request_payload_ ? &request_payload_ : nullptr, cq_,
-              notify_cq, this) != GRPC_CALL_OK) {
+              notify_cq, this)) {
         TeardownRequest();
         return;
       }