remove method
Implementation
Future<FirestoreErrors?> remove() async {
if (id == -1) return null;
final compneyID = B2bAuthUser.inUse?.compneyIdInUse;
if (compneyID == null) return null;
if (B2bAuthUser.inUse?.hasOwnerPermission != true) return null;
return await firestore.updateDoc(
docPath: "B2B/$compneyID",
deletePaths: {fieldPath},
);
}