message: Move LL filter creation inside MatrixClient
  As we need an option to turn lazy loading on (we can't just accept a filter,
  as /messages has an incompatible filter), better only pass the option
  and create the filter inside startClient
diff: @@ -34,14 +34,6 @@ interface MatrixClientCreds {
  guest: boolean,
  }
  -const FILTER_CONTENT = {
  - room: {
  - state: {
  - lazy_load_members: true,
  - },
  - },
  -};
  -
  /**
  * Wrapper object for handling the js-sdk Matrix Client object in the react-sdk
  * Handles the creation/initialisation of client objects.
  @@ -109,7 +101,6 @@ class MatrixClientPeg {
  if (SettingsStore.isFeatureEnabled('feature_lazyloading')) {
  opts.lazyLoadMembers = true;
  - opts.filter = await this.matrixClient.createFilter(FILTER_CONTENT);
  }
  try {
  @@ -128,7 +119,7 @@ class MatrixClientPeg {
  MatrixActionCreators.start(this.matrixClient);
  console.log(`MatrixClientPeg: really starting MatrixClient`);
  - this.get().startClient(opts);
  + await this.get().startClient(opts);
  console.log(`MatrixClientPeg: MatrixClient started`);
  }
  