chore: build warnings preventing demo deploy

src/connectedComponents/ViewerMain.js

@@ -2,7 +2,7 @@ import './ViewerMain.css';
 
 import { Component } from 'react';
 import ConnectedLayoutManager from './ConnectedLayoutManager.js';
-import { OHIF } from 'ohif-core';
+// import { OHIF } from 'ohif-core';
 import PropTypes from 'prop-types';
 import React from 'react';