message: Remove sentHistory save altogether
diff: @@ -41,7 +41,6 @@ export default class MessageComposer extends React.Component {
  this.onToggleMarkdownClicked = this.onToggleMarkdownClicked.bind(this);
  this.onInputStateChanged = this.onInputStateChanged.bind(this);
  this.onEvent = this.onEvent.bind(this);
  - this.onPageUnload = this.onPageUnload.bind(this);
  this.state = {
  autocompleteQuery: '',
  @@ -62,21 +61,12 @@ export default class MessageComposer extends React.Component {
  // marked as encrypted.
  // XXX: fragile as all hell - fixme somehow, perhaps with a dedicated Room.encryption event or something.
  MatrixClientPeg.get().on("event", this.onEvent);
  -
  - window.addEventListener('beforeunload', this.onPageUnload);
  }
  componentWillUnmount() {
  if (MatrixClientPeg.get()) {
  MatrixClientPeg.get().removeListener("event", this.onEvent);
  }
  - window.removeEventListener('beforeunload', this.onPageUnload);
  - }
  -
  - onPageUnload(event) {
  - if (this.messageComposerInput && this.messageComposerInput.sentHistory) {
  - this.messageComposerInput.sentHistory.saveLastTextEntry();
  - }
  }
  onEvent(event) {
  