message: remove unused lastPresenceTs
diff: @@ -786,7 +786,6 @@ module.exports = withMatrixClient(React.createClass({
  if (this.props.member.user) {
  presenceState = this.props.member.user.presence;
  presenceLastActiveAgo = this.props.member.user.lastActiveAgo;
  - // const presenceLastTs = this.props.member.user.lastPresenceTs;
  presenceCurrentlyActive = this.props.member.user.currentlyActive;
  }
  