将Apollo iOS中的operationName参数移除，需要在Apollo iOS客户端代码中进行以下修改：

在ApolloClient.swift文件中找到以下两个方法：

func fetch(
  query: Query,
  cachePolicy: CachePolicy,
  contextIdentifier: UUID? = nil,
  queue: DispatchQueue = .global(qos: .userInitiated),
  resultHandler: OperationResultHandler? = nil
) -> ApolloCancellable

func watch(
  query: Query,
  cachePolicy: CachePolicy,
  queue: DispatchQueue = .global(qos: .userInitiated),
  watcherHandler: GraphQLQueryWatcher.ResultHandler? = nil,
  resultHandler: OperationResultHandler? = nil
) -> GraphQLQueryWatcher

将它们的定义从上面的样式更改为以下方式：

func fetch(
    query: Query,
    cachePolicy: CachePolicy,
    contextIdentifier: UUID? = nil,
    queue: DispatchQueue = .global(qos: .userInitiated),
    resultHandler: OperationResultHandler? = nil
) -> ApolloCancellable where Query: PersistedQuery, Query.Variables == Query.Data.Variables

func watch(
    query: Query,
    cachePolicy: CachePolicy,
    queue: DispatchQueue = .global(qos: .userInitiated),
    watcherHandler: GraphQLQueryWatcher.ResultHandler? = nil,
    resultHandler: OperationResultHandler? = nil
) -> GraphQLQueryWatcher where Query: PersistedQuery, Query.Variables == Query.Data.Variables

然后添加以下extension：

extension PersistedQuery {
    var operationName: String? { return nil }
}

现在，您应该可以使用Apollo iOS客户端而不必指定每个查询的操作名称来进行查询和观察。