hashmap__delete
hashmap__delete(ctx->ids, id, &old_key, &old_val);
hashmap__delete(&pmu->events, key.type_and_num, &key, &value);
hashmap__delete(&table->shard, cur->key, /*old_key=*/NULL, &old_value);
hashmap__delete(&table->shard, thread__tid(thread), /*old_key=*/NULL, &old_value);
if (CHECK(!hashmap__delete(map, k, &oldk, &oldv), "elem_del",
if (CHECK(hashmap__delete(map, k, &oldk, &oldv), "elem_del",
if (CHECK(!hashmap__delete(map, k, &oldk, &oldv), "elem_del",
if (CHECK(hashmap__delete(map, k, &oldk, &oldv), "elem_del",
if (CHECK(!hashmap__delete(map, "c", &old_key, &old_value),
if (CHECK(!hashmap__delete(map, "b", NULL, NULL),
if (CHECK(hashmap__delete(map, k, NULL, NULL), "elem_del",