Method delete

packages/firebase-firestore/index.android.ts:1304–1306

(documentRef: DocumentReference)

	}

	delete(documentRef: DocumentReference) {
		return WriteBatch.fromNative(this.native.delete(documentRef.native));
	}

	set(documentRef: DocumentReference, data: DocumentData, options?: SetOptions): WriteBatch {
		if (options) {