Method clear

src/QLContext.actor.cpp:237–241

	}

	void clear(Reference<DocTransaction> tr, DataKey key) override {
		std::string k = getFDBKey(key);
		auto docDeferred = findOrCreate(tr, key);
		docDeferred->deferred.emplace_back([k](Reference<DocTransaction> tr) { tr->tr->clear(k); });
	}

	std::string toString() override { return "FDBPlugin"; }
};